Archives de la Catégorie : Newsletter

avr
11

Nexyad Automatic Color Grading to Reproduce Hollywood Look

NEXYAD Visual Effects Newsletter #20, April 11th 2017



Nexyad Skin « Yellow & Green »

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish. The all process is digital.
Our skins are not LUT and it do not need any human intervention. Job is done in one click.

Yellow and green are just beside on the color Wheel, in fact they merge from one to the other. But even combined all together one can keep a good contrast. This Nexyad Skin does not remove the other colors in image, but it rotate them enough to make all agree to each others. So we apply the green on the background and the shadows and the yellow for the characters skins because it is possible. Yellow can have two different significations: the good one for golden, sunny and rich color; or the bad one that means treachery, lying and deceit. Green has the distinction of being perfectly perceived by the human eye as « green » even if it is extremely light or dark. In psychology we can nevertheless distinguish two greens: green apple or green pulling to yellow that gives a positive feeling of fullness and youth (it’s the one that we took for demos films); and contrariwise dark green that is perceived as negative or even maleficent.

Technology Demo NEXYAD Skin "Yellow & Green" 01 from NEXYAD on Vimeo.

Technology Demo NEXYAD Skin "Yellow & Green" 02 from NEXYAD on Vimeo.

SNCF Conference Gerard Yahiaoui
« Goya’s Ghost » directed by Miloš Forman for quote.



BtoB Day at Pôle Media Grand Paris

The 5th BtoB day of the Cluster took place on Thursday 16th March 2017 at the Maison des Sciences de l’Homme in Paris Nord, supported by AUDIENS, BCE and Quantum.
As in previous editions, members had the opportunity to pitch their activity and present their latest novelties, the Cluster presented its financial partners, which members was able to meet. This day was marked by an exchange during a networking lunch and personalized BtoB appointments.
The aim was to bring together companies involved in transmedia production and new formats, whether they produce content or technical solutions, in order to promote a commercial (product and technological) offer, to look for commercial and technological partnerships or Opportunities for co-production.
As member of the cluster, Nexyad came to present the Nexyad Skins to the audience.

Gerard Yahiaoui presenting Nexyad Skins
Gerard Yahiaoui presenting Nexyad Skins at Pôle Media


Previous Nexyad Skins

Sample of available Nexyad Skins

           
                          OLD FASHION                                                             TEAL & ORANGE

           
                         SHINY OCHER                                                            WARM BROWN

           
                              GOLDEN                                                                   SOFT SUNNY

           
                          STEEL & PINK                                                                  COLORFUL

See more on the NEXYAD Skin Channel

fév
14

New automated color grading « Pastel » in Nexyad Skins library

NEXYAD Visual Effects Newsletter #19, february 14th 2017


For Valentine Day, Nexyad delivers a new wonderful skin for movies, TV shows and pictures.

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish. The all process is digital.
Our skins are not LUT and it do not need any human intervention. Job is done in one click.


Nexyad Skin « Pastel »



Technology Demo NEXYAD Skin "Pastel" from NEXYAD on Vimeo.

For the Valentine’s day, Nexyad presents a new Skin called « Pastel ». All the colors are desaturated but we turned some tones to give a girly ambiance to images. Then we brings light to enhance the pastel feeling. The result is pretty smooth, with plain and solid colors. The Nexyad Skin « Pastel » is perfect for romance movies, or to figure happy past days in flash-back.

Marie-Antoinette by Sofia CoppolaMarie Antoinette directed by Sofia Coppola for quote



Sample of available Nexyad Skins

           
                     GREEN & ORANGE                                                           DARK & COLD

                        3-STRIP A LA TECHNICOL0R                                                  SOFT SUNNY

           
                         WARM BROWN                                                           TEAL & ORANGE

           
                          1969 SPIRIT                                                                  OLD FASHION

See more on the NEXYAD Skin Channel

déc
22

NEXYAD Best Wishes end of 2016 Newsletter !
Enhance your films and pictures with the Nexyad Skins

NEXYAD Visual Effects Newsletter #18, December 22th 2016


This month, Nexyad delivers a new wonderful skin for movies, TV shows and pictures.

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish. The all process is digital.
Our skins are not LUT and it do not need any human intervention. Job is done in one click.


Nexyad Skin « Warm Brown »



Technology Demo NEXYAD Skin "Warm Brown" 02 from NEXYAD on Vimeo.



Technology Demo NEXYAD Skin "Warm Brown" 01 from NEXYAD on Vimeo.



You see above two examples of « Warm Brown » color grading. This Skin is genuine creation of Nexyad. We replaced grey tones with Brown ones, we desaturated the high values and turned them to Brown. In order to give a warm atmosphere and to tidy the mess of colors, we eliminated some tones. Below an example of image with similar warm brown color grading.

On the Road
« On the Road » directed by Walter Salles for quote.


Sample of available Nexyad Skins

           
                          OLD FASHION                                                             TEAL & ORANGE

           
                         SHINY OCHER                                                            HARD SCI-FI

           
                              GOLDEN                                                                   SOFT SUNNY

           
                          STEEL & PINK                                                                  COLORFUL

See more on the NEXYAD Skin Channel

nov
08

Give Automatically the right Colors
to your films or Pictures

NEXYAD Visual Effects Newsletter #17, November 8th 2016


This month, Nexyad delivers a new wonderful skin for movies, TV shows and pictures.

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish. The all process is digital.
Our skins are not LUT and it do not need any human intervention. Job is done in one click.


Nexyad Skin « Old Fashion »


Technology Demo NEXYAD Skin "Old Fashion" 01 from NEXYAD on Vimeo.



Technology Demo NEXYAD Skin "Old Fashion" 02 from NEXYAD on Vimeo.

You see above two examples of « Old Fashion » color grading. This Nexyad Skin is a Sepia based color, but of course it’s not that simple. We organized colors to reduce amount of it and to obtain an orderly impression without discordant tones. Colors aren’t too much desaturated but turned to produce the Old Fashion feeling.


Previous available Nexyad Skins

           
                            SOVCOLOR                                                             TEAL & ORANGE

           
                  3-STRIP TECHNICOLOR                                                    GREEN & PINK

           
                              GOLDEN                                                                   SOFT SUNNY

           
                          STEEL & PINK                                                                  COLORFUL

           
                          DARK & COLD                                                             GREEN & ORANGE

           
                          1969 SPIRIT                                                                  ANTIC YELLOW

           
                        SHINY OCHER                                                                HARD SCI-FI

Previous Nexyad Visual-Effects Newsletter #16

juil
12

Automated Color Grading :
three new Nexyad Skins for your movies

NEXYAD Visual Effects Newsletter #16, July 13th 2016


This month, Nexyad delivers three new skins for movies, TV shows and pictures.

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish. The all process is digital.
Our skins are not LUT and it do not need any human intervention. Job is done in one click.


Nexyad Skin « Hard Sci-Fi »

Technology Demo NEXYAD Skin "Hard Sci-Fi" for automatic color grading from NEXYAD on Vimeo.

With the Nexyad Skin « Hard Sci-Fi », we propose bright images, ethereal, probably from artificial lighting, as commercials about pharmaceutical laboratories with air conditioning and purified atmosphere, clinical environment. It is a clean future and free from impurity, pollution, microbes, defects, anomalies etc.
Minority Report
« Minority Report » directed by Steven Spielberg for quote.


Nexyad Skin « Antic Yellow »

Technology Demo NEXYAD Skin "Antic Yellow" for automatic color grading from NEXYAD on Vimeo.

We pretty succeeded to reproduce « 300  » color grading idea with our « Antic Yellow ». Go on and make strong movies with body suits, swords and Roman red cloaks.

300
« 300  » directed by Zack Snyder for Quote.


Nexyad Skin « Shiny Ocher »

Technology Demo NEXYAD Skin "Shiny Ocher" for automatic color grading from NEXYAD on Vimeo.

The skin « Shiny Ocher » is a genuine creation of Nexyad colorist. The white was removed and replaced by cream. The reds, oranges, magentas, pinks and violets were turned to ocher, etc.


Previous Nexyad Skins

           
                            SOVCOLOR                                                             TEAL & ORANGE

           
                  3-STRIP TECHNICOLOR                                                    GREEN & PINK

           
                              GOLDEN                                                                   SOFT SUNNY

           
                          STEEL & PINK                                                                  COLORFUL

           
                          DARK & COLD                                                             GREEN & ORANGE


                            1969 SPIRIT

Previous Nexyad Visual-Effects Newsletter #15


mai
11

Colorgrade your images automatically with our « 1969 Spirit » skin

NEXYAD Visual Effects Newsletter #15, May 10th 2016



Nexyad Skin « 1969 Spirit »



NEXYAD Skin « Spirit 1969″, an automatic color Grading for your films, videos, TV shows and pictures.


What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish. The all process is digital.
Our skins are not LUT and it do not need any human intervention. Job is done in one click.

Automatic Calibration & Color Grading : Technology Demo NEXYAD Skin « 1969 Spirit » 01 from NEXYAD on Vimeo.

Automatic Calibration & Color Grading : Technology Demo NEXYAD Skin « 1969 Spirit » 02 from NEXYAD on Vimeo.

The new Nexyad Skin is very different from our previous skins. This is an image color processing whereby we voluntarily transformed yellows and oranges and have desaturated human skins in high light. The whole gives a kind of rusty images printing. The high and middle ranges have been lightened. We’ve added an effect that recalls the film bleach bypass technique to enhance the brightness, shadows and increase contrast lost by desaturation. It is important to remember that unlike some ideas still widespread, it is possible to obtain in digital all the effects of silver film, it is only a matter of work.
Finally, it gives very bright images, almost raw, which can put a scene or a movie in the past. That’s why we called it « 1969 Spirit ».

Buffalo 66 01
« Buffalo 66″ directed by Vincent Gallo for quote

Buffalo 66 02
« Buffalo 66″ directed by Vincent Gallo for quote


* * * * *



Reminder : five of our previous Skins presented here on the same picture than « 1969 Spirit »



You can compare it to our last release :

Spirit 1969
1969 Spirit

Soft & Sunny
Soft Sunny

Green & Pink
Green & Pink

Golden
Golden

Dark & Cold
Dark & Cold

Teal & Orange
Teal & Orange

mar
31

Automated Color Grading for Movies

NEXYAD Visual Effects Newsletter #14, April 1st 2016

Headlines :

- Nexyad has been rated three stars by Early Metrics

- Automated Color Grading : New Nexyad Skin « Soft Sunny »

Nexyad has been rated by Early Metrics :
We got Three Stars
Early Metrics, first rating agency for startups gave three stars to NEXYAD.
The audit of NEXYAD has been ordered by a major industrial company of Automotive. The founders, the project, the market and the financial statement of NEXYAD were rated 75/100.
NEXYAD is then in the 20% highest rates ever given by Early Metrics.

Early Metrics
More informations : Early Metrics

Automated Color Grading : New Nexyad Skin « Soft Sunny »
What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish.
Our skins are not LUT and it do not need any human intervention.

Automatic Calibration & Color Grading : Technology Demo NEXYAD Skin « Soft Sunny » 01 from NEXYAD on Vimeo.

Automatic Calibration & Color Grading : Technology Demo NEXYAD Skin « Soft Sunny » 02 from NEXYAD on Vimeo.

Romantic kind of movie offers a wide range of productions between Romantic comedy and full drama. Modern films are characterized by an image processing less luminous than comedy but not as dark than drama. Arguably it emerges a visual constant resulting of soft images slightly colorful with a bit of sun to keep hope. It’s necessary to get on screen the intensity of feelings without digging volumes by strong contrasts. Nexyad was inspired by films such as « Her » or « Twilight » to propose here balanced images with pastel colors but relatively deep as well.

Her
« Her » directed by Spike Jonze for quote.

Twilight
« The Twilight : Breaking Dawn part 1″ directed by Bill Condon for quote.

jan
28

Automated Color Grading
in the Cloud and Cellphones

NEXYAD Visual Effects Newsletter #13, february 1st 2016



Summary :

- Automated Color Grading : New Nexyad Skin « Dark & Cold »

- Nexyad Skins in the Cloud and Cellphones

- Nexyad Visual-Effets in Media



Automated Color Grading : New Nexyad Skin « Dark & Cold »

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish.
Our skins are not LUT and it do not need any human intervention.

Technology Demo NEXYAD Skin "Dark & Cold" 01 from NEXYAD on Vimeo.



Technology Demo NEXYAD Skin "Dark & Cold" 02 from NEXYAD on Vimeo.

Nexyad « Dark and Cold » Skin automated color grading, suits very well for scene of genre films like vampires, scaries, fantastic, heroic fantasy, zombies, end of world, post ww3, etc… Principle is in title : render images dark and cold. Very useful for scenes at night, outside or inside. One can find this kind of ambiance in Underworld Series, Van Helsing, etc.

Underworld
« Underworld 2 : Evolution » directed by Len Wiseman.


* * * * *



Automated Color Grading in the Cloud and Cellphones

NEXYAD announced that their new artificial intelligence-based technology for automatic color grading will be available within 3 months on smart phones.
With the NEXYAD Skins, no matter the dynamics of you sensor, no matter color saturations, no matter the original colors of the scene, you choose an harmony of colors (for instance, teal & orange, Green & pink, golden, etc …) and you click.
Pictures of you video will be automatically transformed in order to fit in the expected render.

The NEXYAD skins will be also available (via a NEXYAD cloud) worldwide for professionals of movie post production : upload of your images, selection of the NEXYAD skin (with few tuning parameters easy to tune) for every sequence, … the nit will be easy to validate on small images, and push render …
After processing, download of your color graded images. The goal is to give back the crucial task of color grading in the hands of the artistic team (and especially the Film Director).

NEXYAD decided to make it available first to everyone on smartphones (of course, professionals will have more choice and tuning parameters).

Image processing is NOT a LUT : several adaptive processings are piloted by artificial intelligence and neural networks-based non linear decision making systems.

This is a true revolution in color grading.

NEXYAD Skins will run on :
. Android (OS proposed by Google)
. IOS (OS proposed on iPhones by Apple)
. Windows Phone (OS proposed on Lumia by Microsoft)

Examples of beautiful renders automatically obtained, pushing a button :

Teal&Orange
Teal & Orange

Green&Orange
Green & Orange

Steel&Pink
Steel & Pink

Colorful
Colorful

Golden
Golden

* * * * *



Nexyad Visual-Effects in Media

Sciences et avenir

« La seconde jeunesse des films ».


A l’occasion du 120e anniversaire de la première projection publique payante, tour d’horizon des techniques informatiques qui permettent de restaurer les chefs-d’oeuvre du 7e art malmenés par le temps.


« Mais il existe des méthodes plus poussées. La société Nexyad a été chargée en 2013 de retrouver les couleurs originelles d’un film philippin (1975) et de faire des recherches sur le grain de La Belle et la Bête, de Jean Cocteau (1946). Elle travaille sur la structure mathématique du fichier.
« Nous partons d’une image composée de pixels pour en faire un modèle, un espace mathématique. Par exemple, on prend un pixel et on le suit dans le temps pour chercher la cohérence », explique le P-DG de la société Gérard Yahiaoui, même si, de son propre aveu, cette méthode plus scientifique qu’artistique déroute un peu le milieu. »

N° 827 – Janvier 2016 – Sciences et Avenir


*****

(pour mémoire le film philippin se trouve être le premier film national en couleur « Gina Uhaw Ako »)
Gina
« Gina Uhaw Ako » image restauration by Nexyad


Pole Media
« NEXYAD dévoile ses nouvelles fonctionnalités ! »

Nexyad Camera Fitting

Spécialiste des effets spéciaux, NEXYAD continue d’innover et vous proposent de nouvelles fonctionnalités techniques : le Skin « Golden », le « Cameras Fitting » ainsi que d’autres teintes à découvrir !

Qu’est ce qu’une teinte Nexyad ?

Les teintes Nexyad sont basées sur une haute technologie combinant analyse d’image, analyse de la perception visuelle humaine, traitement d’image et théories colorimétriques de grands mouvements picturaux. Que ce soit des rush ou des images déjà retouchées, l’application de ces teintes génère un rendu final avec les bonnes couleurs positionnées selon le souhait des utilisateurs. Les teintes ne sont pas des LUT (Look Up Table) et ne nécessitent pas d’intervention humaine.

Lire la suite : http://www.lepole.org/nexyad-skin-golden-cameras-fitting/

nov
30

Calibration, Color Grading & Color Saturation

NEXYAD Visual Effects Newsletter #12, the 1st of december 2015



CALIBRATION AND COLOR GRADING:
WHAT TO DO WITH THE IDEA OF « REALITY »


Paper by NEXYAD


(Version française)

INTRODUCTION

American cinema uses lots of post production to color images. Everyone knows the famous « Teal & Orange » which gives a tan skin to characters and bluish backgrounds in order to increase the contrast of colors. NEXYAD showed the interest of this approach and even declined painters color grammars and developed a unique method, based on intelligence artificial, to automate coloring of the movies: the NEXYAD Skins.

But some professionals of movie industry are rather against this approach. They explain the failure of too important post treatment of colors that is not realistic from their point of view. The genuine capture of the camera will bring more « realism » to images. We discuss the concept of « realism » in art, especially in the cinema.

REALISM IN PICTURAL ART

Painters have modified their techniques and how they represent reality in centuries. In the Beginning, research was focused on the visual representation of reality as seen with their eyes. This work included:
. perspective
. colors
. representation of materials (and particularly flexible materials such as fabrics)
. representation of human skin
. anatomy
. representation of the illumination light, which plays or not in pictures

Already at this stage, some painters wished to dissociate their work from the « reality » because this leads sometimes to unsightly results. This is particularly the case of mannerist in the sixteenth century that distort the perspectives and change colors to give a more interesting and aesthetic impression in their image. One could see example at the same time a part of a character and a light counterweight another part of the same character slightly diving, and proportions are modified not to correspond to reality, but to match a visual harmony sought by the painter.

Peinture Maniériste
We see on this example how perspectives are false with numerous light inconsistency.
http://www.ago.net/art-as-therapy-politics


Le Correge
Venus caractere is view from underneath but the satyre is view from above.
http://www.aparences.net/art-et-mecenat/les-gonzaga-de-mantoue/jules-romain-a-mantoue/

Then, after the invention of photography, of course, painting loses interest Strict search and visual representation to represent other things, such as:
. Impressionism: transcript of fleeting effects of light with visible brush strokes, instead of representing things in themselves
. Fauvism: use of large flat areas of bright colors separated by visible contours, claiming a mode of perception « instinctive » of the represented scene
. etc..

Then, Surrealism, among others, proposed to represent what we « know » of « reality » rather that what we see, an idea taken in Cubism that breaks thus with the idea of respect of any representation in perspective.
Example: one can also draw a face in profile, but as we « know » that the person has a second eye and a second ear, showing these elements on the profile.
Some surrealists claim a better representation of reality with this principle indrawing precisely what one sees.

REALITY VIEWED BY CAMERA
Another point to clarify is the notion of « reality » of images seen thru a sensor, and in particular by a camera. A camera sensor is an electronic system (eg CMOS) that turns a bright solicitation to electrical quantity. Filters are placed in front of sensors to allow the capture of certain colors only. For example, red, green, blue. However, each filter manufacturer produces different filters, CMOS devices are different from one camera to another, and the analogic electronics or digital of one camera is also developed by the camera manufacturer and therefore unique. This means that two cameras observing the very same scene do not produce the same image. We could calibrate the luminances of cameras by transforming them into measuring devices (table of correspondence between the sum of the luminances of the image and the output of a luminance meter).
However, for the colors, it’s different: only two thirds of the colors are « true » color, which is that they correspond to the visual impression that can generate a similar wavelength. The color can be then designate by its wavelength. This works well for the colors of the rainbow. But for one third of the colors, it does not exist: our brain manufactures A colorful visual impression, but it is not possible to find A wavelength that generates the same visual impression. These colors are complex mixtures of wavelengths. Two very different mixes can generate close visual impressions. Two slightly different mixtures can generate very different visual impressions. Therefore it is not possible to calibrate a camera in « colors ».
The intrinsic difference between two cameras is « normal. »
We show below the work published on the internet by Geoff Boyle’s Cinematography Mailing List: CML- CMIR Camera Evaluation January 2015
AjA Cion - BlackMagic
BlackMagic Vs AJA CION


It is possible to create « camera fitting » to paste the dynamics and colors of a camera on the other (link), but none of it is anyway to « reality » …
Aja Cion - BlackMagic / Nexyad Camera Fitting
BlackMagic Vs AJA CION turned to BlackMagic / Camera Fitting by Nexyad

REALITY OF CINEMA FILM
In a movie, the filmmaker chooses, at every moment, where he puts the camera. This process that gives a « point of view », fixed or mobile, is completely artificial, because in « reality » there is no camera. Talking about « realism » is antithetical to the very concept of cinema. The camera plays in the film, in the same way as the actors. Furthermore, the camera captures a 2D image of a 3D world in the visible (the caress of the wind is not captured, even with two cameras for capture in relief). Another point, the film editing: in reality, there is no cutting into shots chained one behind the other one. In short, cinema movie is a device that allow to tell a story, it do not describe reality. Of course, a historical film has no relation to reality, even if it is extremely detailed and shows real facts which have existed in the past.
If realism is one of the objectives of the film maker, he has to use effects and tricks to give the audience a feeling of realism.
Include director George Lucas, « The secret to film is that it’s an illusion »

CINEMA AND ARTISTIC WORK
The question to ask is the artistic question: cinema is there an artistic expression ? If the answer is yes, then we can assume that, as in the case of art painting, filmmakers are able to create an object free of constraints. This latitude can now have concret form by the use of digital special effects, and also with the calibration which offer a wide variety of colored atmosphere.

Jurassic World
Image presented as a quote illustrating our subject: Jurassic World (Directed by Colin Trevorrow)
3D digital special effects technologies are used to create « realistic » scenes with dinosaurs.


Underworld
Image presented as a quote illustrating our subject: Underworld III (Directed by Patrick Tatopoulos)
Technology color grading (color calibration) Digital can create an atmosphere (here pale and blue) that communicates a consistent printing with the nature of the characters (here vampires) or about history.


Spectre
Image presented as a quote illustrating our subject: Spectre (Directed by Sam Mendes)
Technology color grading (color calibration) Digital can create an atmosphere beige brown and blue (see window) giving an oppressive and gloomy atmosphere, according to the purpose of the scene (discussion with Mr White who is dying). It is noted that the render of this picture is very graphic and looks like a painting.


Amélie Poulain
Image presented as a quote illustrating our subject: Le Fabuleux Destion d’Amelie Poulain (Directed by Jean-Pierre Jeunet)
Technology color grading (color calibration) Digital can create an opposition between Character pink cream and green decor, as if the character was not for the world in which it operates. We find a different shade of the same opposition in the movie The Matrix (directed by Andy and Larry Wachowski).


We can bet that a camera raw output would fail to render « real  » this scene from the last James Bond (above): this is the difference between « realism » and « real ». Here, the filmmaker has cheat with colors to make us feel an atmosphere which in this case amplifies the emotional value of the scene. Of course, in theory it is possible to perform this type of color oppositions « in live », using color filters (gelatine), makeup and cinema set, directly the desired colors… But everyone understands whereas if it is possible, it is extremely expensive and reserved for the super productions. The digital work of images gives a very good result for a much more affordable budget.

CALIBRATION THAT CHANGED COLORS « ORIGINAL »
modification of colors outputs of a camera is as we have seen one of the tools which the filmmaker uses to create his artistic object. The Nexyad company has formalized this work, already carried out for years by film colorists, by studying the concordances of colors and by comparing themto polyphonic arrangements in music . Concordances of colors resume painters’s work who have formalized « Color grammars » and gave symbolic meanings, as well as work by film colorists on reference films.
From this study, NEXYAD has developed an artificial intelligence system capable of analyzing colors of an image, then to select the concordance of colors that it is desired (irrespective of original colors of the image)and apply it. Thus, the image processing done will never be the same depending on the dynamic luminance and initial colors, in order that the final render, itself, is the same.
This is not a LUT!
This technology, named « NEXYAD Skin » will be soon available on the internet for all filmmakers, including directors of short films. Examples of renders already available:

Nexyad Skin Golden
Nexyad Skin Golden


Nexyad Skin Teal & Orange
Nexyad Skin Teal & Orange


Nexyad Skin Sovcolor
Nexyad Skin Sovcolor


Nexyad Skin Technicolor
Nexyad Skin 3 strip Technicolor


Nexyad Skin Steel & Pink
Nexyad Skin Green & Pink


Nexyad Skin Steel & Pink
Nexyad Skin Steel & Pink


Nexyad Skin Green & Orange
Nexyad Skin Green & Orange


* * * * *



NEXYAD SKIN COLORFUL

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish.
Our skins are not LUT and it do not need any human intervention.

Technology Demo NEXYAD Skin "Colorful" 01 from NEXYAD on Vimeo.



Technology Demo NEXYAD Skin "Colorful" 02 from NEXYAD on Vimeo.


This time our team Nexyad visual effects has worked on an improvement of a high color saturation. The difficulty is to saturate the colors without drool and noise, in addition to finding a good color balance. For over a decade now, the color saturation is no longer taboo. This is visible especially in comedies from Hollywood, at Bollywood in general, and in TV shows like the famous « CSI Miami. »
With our Nexyad Skin Colorful, it is now possible to transform your movies and pictures in one click for more colored effects without any articfact.

No Pain No Gain
« No Pain No Gain » directed by Michael Bay for quote.


See all Nexyad Skin Démos on Vimeo : https://vimeo.com/channels/931927/


See our result compared to the Adobe Photoshop « Vibrance » effect 100%. The Nexyad Skin Colorful makes the job without any noise, but Photoshop produces noise as seen in the last picture « detail ». These pictures have been taken with an Iphone 6.
Nexyad Colorfull 01
Nexyad Skin Colorful


Adobe Vibrance 01
Adobe Photoshop « Vibrance » effect 100%


Nexyad Colorfull 02
Nexyad Skin Colorful


Adobe Vibrance 02
Adobe Photoshop « Vibrance » effect 100%


Nexyad Colorfull 02 Detail
Nexyad Skin Colorful detail


Adobe Vibrance 02 Detail
Adobe Photoshop « Vibrance » effect 100% detail

oct
02

Fully Automated Color Grading
in Pushing one Button

NEXYAD Visual Effects Newsletter #11, the 2nd of october 2015



Automatic Color Grading using Nexyad Skins


NEXYAD TECHNOLOGY FOR IMAGE, VIDEO, AND MOVIE POST-PRODUCTION :
AUTOMATIC COLOR GRADING USING THE NEXYAD SKINS

Paper by NEXYAD


INTRODUCTION

NEXYAD has developed technology for applying color charts at images during post-production, to greatly change the atmosphere : the automatic color grading, that we called the NEXYAD Skins.

This automatic color grading applies equally to the rush or to contrast and luminance calibrated images and provides calibrated recolored images, in a dynamic already validated by technicians and artists for movie.

With our technology, it becomes difficult to make « bad taste » renders, or they are made voluntarily and then have a strong artistic scope.

The principle of our automatic color grading of automatically granting colors so that the rendering is harmonious.

We act as a musician on the piano : if each color corresponds to a music note, and thus a key, then playing multiple notes at the same time is putting a set of colors side by side in the same image. Question is : is it harmonious ?

The music is governed by rules called « rules of harmony. » For the same dominant note such as the A note, one can construct chords (set of notes played simulanément) containing the A note, but which give a completely different sensory and emotional experience.

Figure 1
The note A on the piano keyboard

Examples of music chords :

. A Major : A note is dominant and the atmosphere is cheerful

Figure 2
Chord « A Major » that includes the note A

. A minor : A note is dominant and the mood is sad

Figure 3
Chord « A minor » that includes the note A

. D minor : A note comes in support of another note (D which is dominant), the atmosphere is sad
the global tune id not A, it is D.

Figure 4
Chord « D minor » that includes the note A

. etc …

On a piano, you don’t put your fingers anywhere because if you do it is not called music, it is called « noise ».

For colors, that’s exactly the same thing : all colors do not go together, and there are very many different combinations of colors which generate a different harmony.

These color groups have been studied among others by artists (Kandinsky, the Bauhaus school, …), which proposed what is called « colors grammars ».
When capturing images, if the colors in the image belong to a colors grammar, then rendering is harmonious, and the atmosphere is that of the grammar (dynamic, joyful, sad, blue, etc …).

There are several solutions for your image to be compatible with a grammar of colors :

. Solution 1: you know the grammars of colors, you know the sensations and impressions they generate, you choose one, and you ensure that the photographed or filmed elements have precisely the right colors there. It takes a lot of knowledge, and also ways for sets, costumes, etc …
Note : apart in productions with very large budget, it is rare for outdoor shoots that this kind of method can apply.

. Solution 2: you know the grammars of colors, you know the sensations and impressions they generate, you choose one, and you change some colors of your rush image, by hand, in post production to bond grammar that interests you. It takes a lot of knowledge, software tools for color grading, and also human resources and time.

. Solution 3: you apply NEXYAD automatic color grading solutions (NEXYAD skins) and see what it generates on YOUR images, or else you give NEXYAD adjectives that describe the mood and NEXYAD will choose for you.

If you think your photographs and films in terms of color and chords, with sensory emotional load generated on the viewer-s brain, regardless of the image content and the story being told, you have an efficient way to work your artistic content, and you are free to choose clear artistic directions such as :

. consistency: the story told, the content of images, colors and grammar are fully consistent
(Eg : it tells a sad story, filmed objects are old, dirty … and the colors give an impression of sadness). If you add a sad music, you get a maximum of sadness message from your work to the viewer.

. shift: certain elements of the work contradicts the others.
Eg : the story told is dramatic, image content is joyful, the colors give a naive rendering.
If you add a childlike music, the viewer sees an inconsistency and generates itself a strong emotion to offset the discrepancy. Your work then integrates the spectator within itself instead of projecting toward the viewer…

. etc …

The perfect control of color rendering brings an effective tool for artists in photography and cinema.
note : saying that your creativity is higher than that and that you need to be completelu free of rules in your creation means that a piano doesn’t have enough keys for you … It is possible (yes it is), but think twice before saying it. Many music genius before used the piano to create wonderful pieces of music, and no one would say they are not artists : Mozart, Beethoven, …


TECHNICAL EXPLANATION : AUTOMATIC COLOR GRADING AND LUMINANCE PROCESSING

Let’s take the case of a scene that contains 3 colors, and let’s say that you want to apply a grammar of colors that need to change every original color.

The NEXYAD tool (NEXYAD Skin) will take original colors and will choose which final color thay should be tranformed in :

Nexyad : Colors in rush image

Some colors may be kept identical, other modified to stick to a color of the grammar, and finally other fully removed and replaced with a new color.

NEXYAD technology can do that … automatically.
You select the grammar of colors, and NEXYAD Skin manages to harmonize colors. This exceptional result is the fruit of a very high level research conducted since 1995 by NEXYAD on perception of color and advanced image processing.

Regarding the brightness, we can pass from the luminance dynamics of a rush image to the dynamics of the calibrated image using a « Calibration curve ». If the dynamics of final rendering is always the same but the dynamics of the rush picture varies (unexpected variation of lights, camera change, …), then it’s never the same curve that is used for calibration.
The NEXYAD Skin computes the proper curve for each image fully automatically.

EXAMPLE

In this example, we apply several NEXYAD Skins on the same film. This does not mean that all colors grammars are interesting for all films, this is only a technical demonstration to all potential partners and users.
For a given artistic direction and a given sequence, there are only a few NEXYAD skins that may be interesting.
note: you can customize the automatic renders, using simple parameters like saturation, etc. Then you’ll get absolutely unique renders.

Here is a picture from a royalty free movie bought by NEXYAD on the internet (you may buy it too if you want to try color calibration renders) :

Nexyad Skin Green & Orange


Nexyad Skin 3-strip Technicolor


Nexyad Skin Golden

Nexyad_Skin_Steel&Pink
Nexyad Skin Steel & Pink

Nexyad_Skin_Teal&Orange
Nexyad Skin Teal & Orange

Nexyad Skin Sovcolor
Nexyad Skin Sovcolor

Nexyad Skin Green & Pink
Nexyad Skin Green & Pink



*****



New Nexyad Skin « Steel & Pink »



NEXYAD Skin « Steel & Pink », an automatic color Grading for your films, videos, TV shows and pictures.

What is a Nexyad Skin ?
The Nexyad Skins are based on a high technology combining image analysis, human visual perception analysis, image processing and color theories of great picturial movements. Whatever the incoming images (rushes or already modified) the application of our Skins generates a final rendering with the selected colors positioned where we wish.
Our skins are not LUT and it do not need any human intervention.

Technology Demo NEXYAD Skin "Steel & Pink" 01 from NEXYAD on Vimeo.

Technology Demo NEXYAD Skin "Steel & Pink" 02 from NEXYAD on Vimeo.

Nexyad Visual-Effects continues his library of Nexyad Skins with here a combination of Steel and Pink. Blue, teal, green and grey turn toward steel, a kind of dark teal recalling steel. We have turned orange, yellow and red toward a tint of light magenta for harmonize those colors all together. Note that we kill violet. This give a very cold atmosphere and even a feeling of cold weather. Indeed, on the color wheel, our pink is near from violet and blue. It can be use to introduce sadness, old fashioned, strange, dramatic and negative values to images.
For our technology demo, we have choosen a royalty free movie shot in Iceland to increase the cold effect and another one that could look like Berlin in the 60’s of twentief century. Remember that our color grading is obtained in pushing just one button. We quote an image from « Aviator » with Leonardo Di Caprio. This superproduction costed $ 110 millions, so we can expect that color grading was also expensive.

Aviator
« Aviator » directed by Martin Scorsese for quote.


*****



Other NEXYAD Skins already available

Nexyad Skin Sovcolor
NEXYAD Skin « Sovcolor »


Nexyad Skin Teal & Orange
NEXYAD Skin « Teal & Orange »


Nexyad Skin Green & Pink
NEXYAD Skin « Green & Pink »


Nexyad Skin 3-Strip Technicolor
NEXYAD SKIN « 3-strip Technicolor »


Nexyad Skin Green & Orange
NEXYAD Skin « Green & Orange »


Nexyad Skin Golden
NEXYAD Skin « Golden »

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