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Description: 视频格式主要有两大系列：YUV和RGB格式。本文详细描述了这两种格式之间的转换关系。-There are two major video formats Series: YUV and RGB format. In this paper, a detailed description of the format conversion between the two relations.
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Author: zx |
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Description: TMS320c6000系列DSP做图像处理的应用举例,图象颜色模式转换,从RGB到Y Cr Cb-TMS320C6000 series DSP to do image processing applications, for example, image color mode conversion from RGB to Y Cr Cb
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Size: 48128 |
Author: ming |
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Description: // RGB -> YCbCr
// Y = Coef. for red*Red+Coef. for green*Green+Coef. for blue*Blue
// Cb = (Blue-Y)/(2-2*Coef. for blue)
// Cr = (Red-Y)/(2-2*Coef. for red)
// YCbCr -> RGB
// Red = Cr*(2-2*Coef. for red)+Y
// Green = (Y-Coef. for blue*Blue-Coef. for red*Red)/Coef. for green
// Blue = Cb*(2-2*Coef. for blue)+Y
-// RGB-> YCbCr
// Y = Coef. for red*Red+Coef. for green*Green+Coef. for blue*Blue
// Cb = (Blue-Y)/(2-2*Coef. for blue)
// Cr = (Red-Y)/(2-2*Coef. for red)
// YCbCr-> RGB
// Red = Cr*(2-2*Coef. for red)+Y
// Green = (Y-Coef. for blue*Blue-Coef. for red*Red)/Coef. for green
// Blue = Cb*(2-2*Coef. for blue)+Y
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Size: 1024 |
Author: 张晓东 |
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Description: 我自己寫的RGB與YCbCr(YUV)色彩格式轉換,可以RGB轉YCbCr或YCbCr轉RGB,並支持顯示轉換後的色彩功能.-I wrote it myself RGB and YCbCr (YUV) color format conversion can be RGB or YCbCr to YCbCr to RGB, and supports the display of the color conversion function.
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Size: 39936 |
Author: 陈大头 |
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Description: Overview
Input Clock = 24Mhz
Preview VGA 15fps @ 60Hz
VGA 12.5fps @ 50Hz
Capture VGA 15fps @ 60Hz
VGA 12.5fps @ 50Hz
Output Format YCbCr 4:2:2 (ITU 656)
YCbCr to RGB conversion
R = Y + (351*(Cr – 128)) >> 8
G = Y – (179*(Cr – 128) + 86*(Cb – 128))>>8
B = Y + (443*(Cb – 128)) >> 8-OverviewInput Clock = 24MhzPreview VGA 15fps @ 60HzVGA 12.5fps @ 50HzCapture VGA 15fps @ 60HzVGA 12.5fps @ 50HzOutput Format YCbCr 4:2:2 (ITU 656) YCbCr to RGB conversionR = Y+ (351* (Cr- 128))>> 8G = Y- (179* (Cr- 128)+ 86* (Cb- 128))>> 8B = Y+ (443* (Cb- 128))>> 8
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Author: iflyman |
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Description: Convert a color image between color representations.
B = COLORSPACE(S,A) converts the color representation of image A
where S is a string specifying the conversion. S tells the
source and destination color spaces, S = dest<-src , or
alternatively, S = src->dest . Supported color spaces are
RGB R G B Red Green Blue (ITU-R BT.709 gamma-corrected)
YPbPr Luma (ITU-R BT.601) + Chroma
YCbCr / YCC Luma + Chroma ("digitized" version of Y PbPr)
YUV NTSC PAL Y UV Luma + Chroma
YIQ NTSC Y IQ Luma + Chroma
YDbDr SECAM Y DbDr Luma + Chroma
JPEGYCbCr JPEG-Y CbCr Luma + Chroma
HSV / HSB Hue Saturation Value/Brightness
HSL / HLS / HSI Hue Saturation Luminance/Intensity
XYZ CIE XYZ
Lab CIE L*a*b* (CIELAB)
Luv CIE L*u*v* (CIELUV)
Lch CIE L*ch (CIELCH)-Convert a color image between color representations. B = COLORSPACE (S, A) converts the color representation of image A where S is a string specifying the conversion. S tells the source and destination color spaces, S = ' dest <-src' , or alternatively, S = ' src-> dest' . Supported color spaces are ' RGB' R' G' B ' Red Green Blue (ITU-R BT.709 gamma-corrected)' YPbPr ' Luma (ITU-R BT.601 )+ Chroma ' YCbCr' /' YCC' Luma+ Chroma ( " digitized" version of Y' PbPr) ' YUV' NTSC PAL Y' UV Luma+ Chroma ' YIQ' NTSC Y' IQ Luma+ Chroma ' YDbDr' SECAM Y ' DbDr Luma+ Chroma ' JPEGYCbCr' JPEG-Y' CbCr Luma+ Chroma ' HSV' /' HSB' Hue Saturation Value/Brightness' HSL ' /' HLS ' /' HSI ' Hue Saturation Luminance/Intensity' XYZ ' CIE XYZ' Lab ' CIE L* a* b* (CIELAB)' Luv ' CIE L* u* v* (CIELUV)' Lch ' CIE L* ch (CIE
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Author: 张灯结 |
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Description: Camera Interface模块是视频输入转换存储模块。该模块一端接通用的video camera设备，另一端接AHB总线。实现了将Camera捕捉到的数据进行转换、并通过DMA存储到memory中。该IP支持ITU-R BT 601/656 8-bit 模式。支持YCbCr, RGB格式输入。可以将camera产生的YCbCr信号转换成24bit RGB 信号，然后下采样生成16bit RGB 5：6：5的LCD能直接读取显示的数据。该设备支持图像的镜像和翻转，以便适应手持式设备在移动环境中图像的捕捉。可变的同步信号极性使得可以兼容各种摄像头外设。Camera Interface兼容AMBA规范， AHB SLAVE接口，用于读取软件配置数据和设置数据存放地址和1帧数据占用的空间。-The Camera IP Core is small and flexible video data coverter. It is connected to a typical video camera ICs with 8-bit digital video data, Horizontal synchronization and Vertical synchronization signals. The core is connected through FIFO to a WISHBONE bus on the other side. Both sides of the core can operate at fully asynchronous clock frequencies. The Camera IP Core convertes 4:2:2 YCbCr video data (sometimes called YUV, but not totally the same Y is the same, while Cb and Cr are U and V multiplied by a constant) to a 24-bit RGB. 24-bit or 16-bit RGB data, downsampled from 24-bit RGB, is then sent to the system (video) memory, however conversion can also be by-passed. Interrupt can be generated after frame-buffer in system (video) memory is filled up or after setable number of horizontal lines written to frame-buffer.
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Author: 孙喆 |
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Description: 这个程序用来统计被训练的肤色在YCbCr空间的聚类情况，从而建立一维高斯模型，进行肤色分割。-Statistics and observe various color space of 1-d gaussian clustering including Y Cb Cr。
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Size: 1447936 |
Author: sun |
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Description: dwt on y part of ycbcr image
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Size: 1024 |
Author: rakh |
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Description: 通过ssr算法，在YCBCR空间上 对Y分量单独处理，来实现对图像光照不均匀处理，效果很好 可以继续改进-By ssr algorithm, YCBCR space on the Y component alone, to achieve uniform illumination of image processing, the effect is very good to continue to improve
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Size: 1024 |
Author: jack |
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Description: Convert RGB color values to YCbCr color space.
used as a part of the color image pipeline in video and digital photography systems. Y′ is the luma component and CB and CR are the blue-difference and red-difference chroma components. Y′ (with prime) is distinguished from Y, which is luminance, meaning that light intensity is nonlinearly encoded based on gamma corrected RGB primaries.
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Size: 1024 |
Author: MATRIXXX |
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Description: 颜色空间转换：RGB空间-->ycbcr空间。速度比ColorSpace调用快多了。
调用格式[y, cb, cr] = rgb2ycbcr(img)
输入img: rgb彩色图；y: 亮度，cb：蓝色，cr：红色
调用参考runTest.m-Color space conversion, RGB to ycbcr
call format: [y, cb, cr] = rgb2ycbcr(img)
input img: rgb image
output r: intensity, cb: blue, cr: red
Example see runTest.m
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Size: 377856 |
Author: hujunyi |
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Description: YCbCr, Y′CbCr, or Y Pb/Cb Pr/Cr, also written as YCBCR or Y′CBCR, is a family of color spaces used as a part of the color image pipeline in video and digital photography systems. Y′ is the luma component and CB and CR are the blue-difference and red-difference chroma components. Y′ (with prime) is distinguished Y, which is luminance, meaning that light intensity is nonlinearly encoded based on gamma corrected RGB primaries.-YCbCr, Y′CbCr, or Y Pb/Cb Pr/Cr, also written as YCBCR or Y′CBCR, is a family of color spaces used as a part of the color image pipeline in video and digital photography systems. Y′ is the luma component and CB and CR are the blue-difference and red-difference chroma components. Y′ (with prime) is distinguished Y, which is luminance, meaning that light intensity is nonlinearly encoded based on gamma corrected RGB primaries.
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Size: 305152 |
Author: mahmood ali |
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Description: This code s adaptive illumination compensation based black value or minimum value pixel followed by Y component of YCbCr space based illumination compensation. The code is cascaded execution of section 2.-This code s adaptive illumination compensation based black value or minimum value pixel followed by Y component of YCbCr space based illumination compensation. The code is cascaded execution of section 2.
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Size: 2048 |
Author: 王淑丹 |
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Description: 1) Use the “hotel.tif”and find the grayscale version (Y)of this images by converting into the YCbCr space.
2)show the spectral characteristic (DFT)
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Size: 1211392 |
Author: ela |
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Description: 输入一副RGB图像，将其转化为YCbCr颜色空间，然后对Y分量做分块DFT变换，保存为灰度图像，统计计算时间
-Enter an RGB image, converted into YCbCr color space, and then do the Y component block DFT transform, saved as gray-scale image, statistical calculation time
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Size: 1024 |
Author: Eason |
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Description: Y C B C R 转 R G B 源 代 码-ycbcr to rgb source code
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Size: 97280 |
Author: ncutcx |
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Description: 在复杂背景下双椭圆模型结合在CbCr和CgCr平面内体现的肤色聚集性和集中性的检测效果要比单高斯模型的效果好。在YCbCr和YCgCr颜色空间中，虽然Y分量和Cb、Cr、Cg分量表示的性质看似是相互独立的，但它们都是建立在红、绿、蓝三个基本颜色分量值的基础上算出来，因此它们之间仍然存在着千丝万缕的关系。根据肤色在两种色彩空间中体现出的聚集性提出CbCr-CgCr双椭圆肤色模型-Good background in complex dual oval model incorporated within CbCr and CgCr plane reflect complexion aggregation and concentration detection results than the single Gaussian model results. And YCgCr in YCbCr color space, although the nature of the Y component and Cb, Cr, Cg component represented appears to be independent of each other, but they are all based on red, green, blue three basic colors based component values get on out Therefore there are still intricate relationship between them. Proposed CbCr-CgCr double ellipse skin model according to reflect the color in both color space clustering
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Size: 1024 |
Author: 曹家敏 |
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Description: 基于肤色的人脸检测算法，将彩色图像转换成Ycbcr图像，再根据肤色聚类 从而分割出人脸-Based on the skin color s face detection algorithm, the color image is converted to the image of Ycbcr, and the face is divided according to the color of the skin
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Size: 279552 |
Author: 陈晨 |
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Description: 项目:用到FPGA驱动GV7600输出SDI信号，输出分辨率1920*1080p，首先，了解GV7600芯片的特性功能，按照bt1120协议传输10位Y，Cb，Cr数据；其次，我的项目中用的是10位通道分时复用传输Y，Cb，Cr数据；配置引脚很重要，当初verilog代码写好了，因为硬件引脚配置错误，导致调试一直不通；同时，sof文件也要一直更新(Based on FPGA to design the drive controller of GV7600)
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Size: 2596864 |
Author: Davemissyou |
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