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SaveJPEG
- 提示： JPEG压缩分为三个部分： 1.JPEG压缩原理及算法（RGB/YCbCr,DCT/IDCT,量化,Z字型编码,用DPCM对DC/用RLE对AC编码/Huffman编码） 2.JPEG标记格式 3.JPEG图片文件的组织形式（位于SOS后的图像压缩数据是由MCU块怎样排列的，特别是使用了DRI之后） 还有许多细节问题： 1.解码过程中遇到“FF 00”当“FF”处理，否则忽略“FF” 2.进行DCT前YCbCr要减128，进行IDCT前要加128（相当于Y减128，YCbCr不需要加12
对图像进行YCbCr分解
- rgb=imread('lena.png'); YCbCr=rgb2ycbcr(rgb); subplot(221),imshow(rgb),title('image'); Y=YCbCr(:,:,1); Cb=YCbCr(:,:,2); Cr=YCbCr(:,:,3); ycbcrmap(:,:,1)=Y; ycbcrmap(:,:,2)=128; ycbcrmap(:,:,3)=128; subplot(222),imshow(Y),title('Y'); ycbcrma
YCRCB2RGB.rar
- 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.
101259378luv_rgb_yuv_lab_space
- 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 alte
OV7660SettingV1.0
- 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 –
jpg_function
- // 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 b
camera_up
- 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
YCbCrGaussian_Sun
- 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。
ghjk
- dwt on y part of ycbcr image
SSR_ycbcr
- 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
RGBtoYcbcr
- 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)
rgb2ycbcr
- 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: i
ycbcr420
- 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-
Adaptive-Illumination-Compensation
- 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 compensati
filtering
- 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)
main2
- 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
v_ycrcb2rgb_v6_01_a
- Y C B C R 转 R G B 源 代 码-ycbcr to rgb source code
double-ellipses-skin-color-model
- 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 with
Y-cr-cg
- 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
SDI_controller
- 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)