In Metal on iOS the default colorPixelFormat is bgra8Unorm. When I change format to rgba16Float all imagery brightens. Why? An example: Artwork MTKView with format bgra8Unorm. Texture-mapped ...

I've been under the assumption that my gamma correction pipeline should be as follows: Use sRGB format for all textures loaded in (GL_SRGB8_ALPHA8) as all art programs pre-gamma correct their fil...

How do I correctly convert colors stored as Y'CrCb (using rec. 709) to sRGB? I'm working with HDTV video and I'm extracting the raw data using libavcodec. While I have succeeded in making the conv...

Color space. Well, everybody knows about RGB: three values normalized in the range [0.0,1.0], which have the meaning of the intensity of the color components Red Green Blue; this intensity is meant...

Quick question! I have an R G B value and I want to convert to convert it to be 50% brighter. I found a gamma formula but I'm unsure if gamma is the correct way to go. So far, I'm using: r = 25...

Here is my problem, when I load in textures I load them in as SRGB to convert them into linear space. When I was writing to the default frame buffer provided by the windowing system I enabled...

I'm trying to run a GLM in R for biomass data (reductive biomass and ratio of reproductive biomass to vegetative biomass) as a function of habitat type ("hab"), year data was collected ("year"), an...

I'm rendering a PDF file on iPad using core graphics. The colors however look different to the PDF when opening it using OS X preview or acrobat. Here is a picture with the left being from Acroba...

I'd like to add the ability to adjust screen gamma at application startup and reset it at exit. While it's debatable whether one should tamper with gamma at all (personal I find it useless and detr...

Currently I am involved in an image processing project where I am dealing with human faces. But I am facing problems with the images in cases where the light source is on either the left or right s...

How do you convert the decimal number 777 to the equivalent VB & gamma codes? I've been reading up on gamma codes. I see where they get the unary codes from the decimal but not where the length...

The luminence of pixels on a computer screen is not usually linearly related to the digital RGB triplet values of a pixel. The nonlinear response of early CRTs required a compensating nonlinear enc...

I have problems to fully understand the need for gamma correction. I hope you guys can help me. Let’s assume we want to display 256 neighboring pixels. These pixels should be a smooth gradient fro...

I am working on a face recognition project. I have pictures with different lighting so I need to do illumination normalization. I read a paper which which claims to do illumination normalization. T...

I'm looking for a simple gamma correction formula for grayscale images with values between 0 and 255. Let's say that the gamma of my screen is 2.2 (it's an LCD screen so I would probably need to e...

Should a WebGL fragment shader output gl_FragColor RGB values which are linear, or to some 1⁄γ power in order to correct for display gamma? If the latter, is there a specific value to use or must a...

Since Snow Leopard, QTKit is now returning color corrected image data from functions like QTMovies frameImageAtTime:withAttributes:error:. Given an uncompressed AVI file, the same image data is dis...

When using PNG files (made with Paint.NET) as background images on my web site, IE7 is changing the colors and actually displaying a darker version of my images, as seen here. In this image, the da...