palette

问题 Does anybody know, off the top of your heads, a Javascript solution for calculating the complementary colour of a hex value? There is a number of colour picking suites and palette generators on the web but I haven't seen any that calculate the colour live using JS. A detailed hint or a snippet would be very much appreciated. 回答1: Parsed through http://design.geckotribe.com/colorwheel/ // Complement temprgb={ r: 0, g: 0xff, b: 0xff }; // Cyan temphsv=RGB2HSV(temprgb); temphsv.hue=HueShift

问题 I was trying to create a OpenGL version of an old plasma 8bit effect animation in DOS but I am stuck. Since almost every OpenGL program has included something to generate a palette for Win32 I thought it would not be that hard to apply palette animation on my old program. My purpose is to generate a texture with color indices that does not change and a palette that is rotating. After digging into the web this weekend I am still not able to fix it. I cannot even display a texture with one

问题 I am using CKEditor (v3.6.4) and try to find out how to change the palettes for Text Color and Background Color separately. I found config.colorButton_colors in the docs which allows me to define the color palette. However, this palette is assigned to both, text and background. How can I have two different palettes? 回答1: You can't do that because the color palette is defined for the text color and background. CKEDITOR.config.colorButton_colors = '000,800000,8B4513,2F4F4F,008080,000080,4B0082

问题 I've just configured Eclipse Indigo(for RCP) in Ubuntu 11 and everything is fine with it as compared to my previous IDE Eclipse Helios(for RCP) except one thing : that is I installed all nebula widgets from their installation repo : http://download.eclipse.org/technology/nebula/snapshot and http://download.eclipse.org/technology/nebula/incubation/snapshot. I can access all widgets in palette of Design view. But there is neither any widgets of nebula nor the category nebula in palette.I had

问题 I'm writing a game with Python and Pygame. For this, the graphics will be in the style of old video game consoles like the NES. Therefore, the graphics consist of a single tileset file with 2-bit (4-colour) images, and I want to be able to assign an arbitrary 4-colour palette to these images when loading them. What I want to do is use an 8-bit (256-colour) palette mode, with a palette that I have divided into 64 sub-palettes of 4 colours each. Every time I load a 16x16 tile from the 2-bit

问题 I want to plot m*n matrix, each element of which is an rgb triple, like in the following gnuplot code snippet (rgb matrix of 3*3 ): $cross << EODcross 255 0 0 0 0 0 255 0 0 0 0 0 0 0 0 0 0 0 255 0 0 0 0 0 255 0 0 EODcross Black cross on red background. I can change delimiters between columns and color components, if needed. Can I achieve the desired avoiding set palette rgbformulae i,j,k and directly using $cross data? Something like: plot '$cross' matrix with image rgb If not, I can pass

问题 I need to join 2 PNG images, with 16 color palette, keep colors number and order as originals. Both PNGs use the same 16 color palette. There is a way to create 4 bit indexed PNG with all colors, in exact order, even unused in each PNG? Edit to be more clear: I have 2 pictures. The first is "level-000.png": It is identified as: Image: level-000.png Format: PNG (Portable Network Graphics) Mime type: image/png Class: PseudoClass Geometry: 144x144+0+0 Resolution: 28.35x28.35 Print size: 5

问题 Is it possible to plot two sets of data on the same plot, but use different color palettes for each set? testdf <- data.frame( x = rnorm(100), y1 = rnorm(100, mean = 0, sd = 1), y2 = rnorm(100, mean = 10, sd = 1), yc = rnorm(100, mean = 0, sd = 3)) ggplot(testdf, aes(x, y1, colour = yc)) + geom_point() + geom_point(aes(y = y2)) What I would like to see is one set of data, say y1 , in blues (color set by yc ), and the other set in reds (again color set by yc ). The legend should then show 2

问题 I recently made the switch to Android Studio as my default IDE for Android development. When designing my UI I normally use the palette in the design view to assist in arranging the widget on the preview screen.Recently something weird happened, It just disappeared and I can't seem to re-enable it. Normally I would see the little Palette button on the side but now its gone. When I open another project I see the palette but not show this current project I'm working on. When I open another

问题 I'm not sure how I would go about reducing the color palette of a PIL Image. I would like to reduce an image's palette to the 5 prominent colors found in that image. My overall goal is to do some basic color sampling. 回答1: That's easy, just use the undocumented colors argument: result = image.convert('P', palette=Image.ADAPTIVE, colors=5) I'm using Image.ADAPTIVE to avoid dithering 回答2: The short answer is to use the Image.quantize method. For more info, see: How do I convert any image to a 4