I want change a color of a button depending by background color of with: So, I need to get parent widget located by button and get its color / any ...
I want change a color of a button depending by background color of with: So, I need to get parent widget located by button and get its color / any ...
I want to calculate the luminance of image using RGB value but in the formula there is a constant k i didn't know what it is this is the formula from ...
Background: I'm trying to generate a color palette in SASS/JS based on Google's Material Theme Builder 3 which requires tonal palette's to be generat ...
I want the luminance value of iPhone. In Android we can get it using Type_Light as given here: https://developer.android.com/guide/topics/sensors/sens ...
Trying to figure out how to accomplish this task: I'd want to select pixels of an image based on luminance, and then grab the rgb values of those pixe ...
I have a simple question, but I wasn't able to find an answer to this. Note, that I'm almost a complete beginner. So I have an app (it's not mine, bu ...
Iam working on understanding the image with image luminance check and i tried to find the brightness of the image by the code below def brightness( i ...
I have an rgb image (rgb), and I want to set the luminance to make sure that it's constant. I first check the luminance of the original image (greyrgb ...
I have a lot of images with different luminance value. And i want to set luminance of image to standard value that is 0,196 or 49,98. And what i want ...
I am trying to adjust the mean luminance of an image using imagemagick. I have converted the size and color of the images so they are now in grayscale ...
I'm using vuforia sdk for AR. I need to get the luminance from the device camera. I searched on vuforia forum but couldn't find anything there. Can an ...
I have a series of images from a slow motion capture of pulsing electrical discharges. Many of the frames are nearly black. I would like to selectivel ...
As per Weber's law, delta(L)/L is a constant where L is luminance measured in candela/m2 )i.e. (L2 - L1)/L1. This implies that a small change in lower ...
Not able to get original image after applying the filter on imageview.As I want to get original image after moving the slider from 1 to 0 (max to min ...
I have the following image. If I plot the average luminance as a function of x-pixel location I can see that the image is bright along the center th ...
On this post I found an algorithm to determine the luminance of an RGB color: Luminance (standard for certain colour spaces): (0.2126*R + 0.7152*G ...
I'm working with Stylus, the CSS Pre-processor and I want a function to adjust the "perceived brightness" of the color, say, by 20% or -10%. I discov ...
I'm trying to convert some video from VHS to digital using an (old) video capture card (and obviously an old VHS player). Due to the input from my vid ...
For my opengl video player app, I am using surface texture bound to GL_TEXTURE_EXTERNAL_OES source : https://github.com/crossle/MediaPlayerSurface/bl ...
I would like to weigh values of luminance. Example: I have a vector of luminance values: I have a vector of coefficients: I create an empty ima ...