YUV与RGB之间的转换
rgb = imapplymatrix(Ainv,ycc,'uint8');% reverse immse(inpict,rgb)% cycle is lossless ans = 0 Note that doing anything to move any of these values away from powers of 2 will break reversibility. If the source image is converted from [0 255] uint8 to [0 1] scale double, the cyc...
For input data in the form of studio video RGB, the clip operation is necessary to keep the U and V values within the range 0 to (2^M)-1. If the input is computer RGB, the clip operation is not required, because the conversion formula cannot produce values outside of this range....
Luma is derived from an RGB color by taking a weighted average of the red, green, and blue components. For standard-definition television, the following formula is used: Y' = 0.299R + 0.587G + 0.114B This formula reflects the fact that the human eye is more sensitive to certain wavelengt...
Setting options include grid display, different YUV to RGB conversion formula, etc. Many of above functions can also be performed in command line mode, which are useful for batch process or scripting. 3. Elecard YUVViewer Elecard是非常好的码流分析工具,它同时还提供了一个YUVviewer。
Using the previous coefficients and noting that clamp() denotes clamping a value to the range of 0 to 255, the following formulae provide the conversion from Y'UV to RGB (NTSC version):Note: The above formulae are actually implied for YCbCr. Though the term YUV is used here,...
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Having issues converting from YUV to RGB. started with this formula: r = 1.0*y + 8 + 1.402*(v-128); // r g = 1.0*y - 0.34413*(u-128) - 0.71414*(v-128); // g b = 1.0*y + 1.772*(u-128) + 0; // b Tried the ones listed above but they just made it worse. ...
application will attach a texture to the framebuffer object as the color attachment. If the texture has a target type of TEXTURE_EXTERNAL_OES with YUV color format then the GL driver can use this framebuffer object as the render target, TEXTURE_EXTERNAL_OES target with RGB color format are ...
} RGB; typedef struct { NSUInteger h; CGFloat s; CGFloat l; CGFloat a; } HSL; typedef struct { NSUInteger h; CGFloat s; CGFloat v; CGFloat a; } HSV; /** * Converts an RGB color value to HSL. Conversion formula * adapted from http://en.wikipedia.org/wiki/HSL_color_space....