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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
处理当前屏幕用的一个小程序
- 看pdf等的电子书,白底黑字看时间长了不舒服,想换成其他颜色的 有时候网上看到的图片or网页背景黑糊糊的,保存下来再处理才看得清... 功能: 0.scr ipt自定义处理流程 处理由系统热键触发. 1.双击scr ipt的编辑框显示的提示: Y , y : Yes //写屏 N , n : No 0 : XGrey //Grey 1 : One //取反 2 : Two //二值化 3 : XRGB //RGB亮度调节 4 : XE
Problem2_6
- 使用VB.net编写的对24位位图进行简单图像处理的程序,包括RGB与YIQ数据的相互变换,绘制亮度分布统计图,拉普拉斯滤波。 该程序是我学习图像处理算法是编写的,因此在操作界面方面的考虑较少,你可以按照以下步骤操作:选择一个文件后单击读取BMP文件,然后就可以单击“根据RGB数据绘图”,接着可以单击“RGB to YIQ”将RGB数据转化为YIQ数据,有了YIQ数据后就可以单击“绘制YIQ数据的Y分量”,对于YIQ数据,可以使用拉普拉斯滤波,然后再将Y分量显示出来-use VB.net p
dip3
- 将原始影像分别对RGB三色彩进行 x与 y轴之 Sobel边缘处理-original RGB images were of three colors for x and y axis of his Sobel Edge
ColorTransformRGB-LAB
- 自己写的很实用的色彩空间转换程序: 在色彩空间的正向转换中(RGB----->Lab),用的是九级均匀分割建模 在色彩空间的反向转换中(Lab----->RGB),用的是多项式(20项)回归的方法! 二十项多项式: p(x,y,z)=a0+a1*x+a2*y+a3*z+a4*x*y+a5*y*z+a6*x*z+a7*x^2+a8*y^2+a9*z^2+a10*x*y*z+a11*x^3+a12*y^3-himself wrote a very practical c
bmp
- 输入x,y坐标,得到该店的RGB值. 输入x,y坐标,得到该店的RGB值.
Hough
- Hough变换 BOOL Hough(HWND hWnd){ //定义一个自己的直线结构 typedef struct{ int topx //最高点的x坐标 int topy //最高点的y坐标 int botx //最低点的x坐标 int boty //最低点的y坐标 }MYLINE DWORD BufSize LPBITMAPINFOHEADER lpImgData LPSTR lpPtr HDC hDc
PointIsR
- 判断点是否在区域内. Private Sub Command1_Click() 当点与任一顶点重合时,返回“不在多边形区域” Line (0, 0)-(500, 500), RGB(255, 255), BF Dim hRegion As Long Dim P() As PointAPI ReDim P(9) As PointAPI P(0).X = 10: P(0).Y = 190: PSet (P(0).X, P(0).Y), vbRed P(1
CIExyY
- 采用vc平台,彩色喷墨打印机RGB的CIExy二维彩色视图(取10个不同的Y值,即绘制10个xy平面图)
line(new)
- 直线扫描算法rivate AX1(100) As Integer, AY1(100) As Integer, AX2(100) As Integer, AY2(100) As IntegerPrivate CX1 As Integer, CY1 As Integer, CX2 As Integer, CY2 As Integer, N As IntegerPrivate Sub form_Load()Picture1.BackColor = RGB(255, 255, 255)N = 0End
2003010296_大作业1
- a CRect rc(x - 12, y - 12, x + 12, y + 12) pDC->Ellipse(&rc) str1.Format( \"%d\",j ) pDC->SetTextColor(RGB(255,0,0)) pDC->DrawText(str1,&rc,DT_CENTER DT_VCENTER DT_SINGLELINE) PaintArrow(pDC,RGB(255,0,0),G.vexs[prev[j]].x,G.vexs[p
BmpConvert 彩色图像RGB格式转化为YUV格式
- 图像信息处理,用于将彩色图像RGB格式转化为YUV格式,用户可以设置Y值的变化,再转化回RGB进行保存。这时的图像的亮度会发生改变。-Image processing, is used to color images into RGB format YUV format, the user can set the Y value changes, and then converted back to RGB to save. At this time the brightness of the
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
readYUV
- 可以读取YUV图像的Y,U,V的值,为下一步转化为RGB做好准备-You can read YUV image Y, U, V value, converted to RGB for the next step to prepare
rgb2yuv
- rgb图像转yuv,基于opencv。仅供参看-rgb image transfer yuv, based opencv. Only see
yv12_y 分量显示器
- YUV分量显示程序。可分别显示Y,U,V 分量。对于理解YUV机制有很好的帮助。-YUV component display program. May showed the Y, U, V components. YUV mechanism for understanding a very good help.
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
Floyd-Steinberg_dithering_(Java)
- an implementation of Floyd-Steinberg dithering in Java for color images. As input we receive an image in 24-bit RGB format and a palette of at most 256 colors, and as output we produce a palettized image where each pixel value is an index into the pa
BMP-RGB
- 读出BMP图片任何一点的RGB值,只要输入点的坐标(x,y)即可。-Read BMP images of any point in RGB values, as long as the input coordinates (x, y) can be.
Save-RGB-Demo
- 图像采集软件,采集CameraLink接口相机的数据并保存为只包含RGB信息的图片-a grab demo which can grab the image sigmal of CameraLink cameras and save the image as .bmp files without Y partion