contrast

问题 Within the context of a 2-way ANOVA, I would like to enter contrast levels for one factor (10, 20, 30 degrees) within levels of another factor (SpeciesA, SpeciesB). This assumes the interaction effect is significant so the contrasts cannot simply be done on the temperature main effect. I have attempted to do this within EZanova, multcomp and phia, but have been unable to figure out a syntax that works. Have I missed a package that allows this? Contrast and coefficients Contrast1: Does 10

问题 Within the context of a 2-way ANOVA, I would like to enter contrast levels for one factor (10, 20, 30 degrees) within levels of another factor (SpeciesA, SpeciesB). This assumes the interaction effect is significant so the contrasts cannot simply be done on the temperature main effect. I have attempted to do this within EZanova, multcomp and phia, but have been unable to figure out a syntax that works. Have I missed a package that allows this? Contrast and coefficients Contrast1: Does 10

问题 I've noticed that the brightness of computer monitors drastically varies between computers. As such, this changes the look of web pages greatly. Is there a way to use JavaScript to automatically detect how bright (or dark) a users monitor is so that I can adjust my web page colors accordingly? UPDATE Please note that I do not want manual user involvement. I want this detection to be automatic so that users don't realize I dynamically change the color palette automatically based on the

问题 I have a site that I'm coding to WCAG 2.0 AA Level compliance and one of the buttons has a colour contrast that does not pass. Background - #D57405 Foreground - #FFF Is it possible to use text-shadow to boost the contrast – would that be seen as a pass? I can serve up a different colour for browsers that don't support text-shadow, but I'd like to try to keep the button the same colour to match brand guidelines for the majority of users. As background - I'm using a web font that doesn't have a

问题 I have a site that I'm coding to WCAG 2.0 AA Level compliance and one of the buttons has a colour contrast that does not pass. Background - #D57405 Foreground - #FFF Is it possible to use text-shadow to boost the contrast – would that be seen as a pass? I can serve up a different colour for browsers that don't support text-shadow, but I'd like to try to keep the button the same colour to match brand guidelines for the majority of users. As background - I'm using a web font that doesn't have a

来源： https://stackoverflow.com/questions/63261234/localized-adaptive-contrast-enhancement-on-opencv-and-python

问题 I have jpegs on a webpage. I would like to perform client-side equalization (contrast stretching) on these images without browser plugins. I would also accept a solution for histogram equalization. I currently use a poor approximation with a combination of two CSS filters (-webkit-filter: contrast() brightness()). I am hoping to be able to accomplish this with something like processing.js or pixastic. 回答1: I do not know of a library that contains an efficient histogram equalization method

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I need to adjust screen brightness/contrast by using Python. It will be a function in my code and it will be run when user presses a key, else script won't change the brigness/contrast. How can i make it in Python? Thank you very much 回答1: I found what looks like a Linux-specific

问题 I've been writing an image processing program which applies effects through HTML5 canvas pixel processing. I've achieved Thresholding, Vintaging, and ColorGradient pixel manipulations but unbelievably I cannot change the contrast of the image! I've tried multiple solutions but I always get too much brightness in the picture and less of a contrast effect and I'm not planning to use any Javascript libraries since I'm trying to achieve these effects natively. The basic pixel manipulation code:

问题 I want to programmatically change the contrast of bitmap. Till now I have tried this. private Bitmap adjustedContrast(Bitmap src, double value) { // image size int width = src.getWidth(); int height = src.getHeight(); // create output bitmap Bitmap bmOut = Bitmap.createBitmap(width, height, src.getConfig()); // color information int A, R, G, B; int pixel; // get contrast value double contrast = Math.pow((100 + value) / 100, 2); // scan through all pixels for(int x = 0; x < width; ++x) { for