colorspace udma

= vimageboxconvolve_argb8888(inbuffer, outbuffer2, NULL, 0, 0, Boxsize, Boxsize, NULL, kvimageedgeextend); Error = vimageboxconvolve_argb8888(inbuffer, outbuffer2, NULL, 0, 0 , Boxsize, Boxsize, NULL, kvimageedgeextend); Error = vimageboxconvolve_argb8888(inbuffer, outbuffer, NULL, 0, 0, Boxsize , Boxsize, NULL, kvimageedgeextend); if (error) { NSLog(@ "error from convolution%ld", error); }//NSLog (@ " byte component:%zu", Cgimagegetbitspercomponent (IMG)); // colo

; } intBoxsize = (int) (Blur * -); Boxsize-= (boxsize%2) +1; Cgimageref img=image. Cgimage; Vimage_buffer Inbuffer, Outbuffer; Vimage_error Error; void*Pixelbuffer; Cgdataproviderref Inprovider=Cgimagegetdataprovider (IMG); Cfdataref Inbitmapdata=Cgdataprovidercopydata (Inprovider); Inbuffer.width=cgimagegetwidth (IMG); Inbuffer.height=cgimagegetheight (IMG); Inbuffer.rowbytes=Cgimagegetbytesperrow (IMG); Inbuffer.data= (void*) cfdatagetbyteptr (inbitmapdata); Pixelbuffer= ma

the bitmapInbuffer.data = (void*) cfdatagetbyteptr (inbitmapdata);//fill in the picture informationPixelbuffer = malloc (Cgimagegetbytesperrow (IMG) * Cgimagegetheight (IMG));//Create a spaceif (Pixelbuffer = = NULL){NSLog (@ "NO pixelbuffer");}Outbuffer.data = Pixelbuffer;Outbuffer.width = Cgimagegetwidth (IMG);Outbuffer.height = Cgimagegetheight (IMG);outbuffer.rowbytes = Cgimagegetbytesperrow (IMG);Error = vimageboxconvolve_argb8888 (inbuffer, outbuffer, NULL, 0, 0, boxsize, boxsize, NULL, K

, outBuffer, NULL, 0, 0, boxSize, boxSize, NULL, kvImageEdgeExtend);if(error) {NSLog(@"error from convolution %ld", error);}CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();CGContextRef ctx = CGBitmapContextCreate(outBuffer.data,outBuffer.width,outBuffer.height,8,outBuffer.rowBytes,colorSpace,kCGImageAlphaNoneSkipLast);CGImageRef imageRef = CGBitmapContextCreateImage (ctx);UIImage *returnImage = [

: Configure whether to activate DMA mode,-D1 to start,-d0 to cancel;-M : Configures the mode of reading multiple sector synchronously. In general, configuring this mode can reduce the performance of the system due to the loss of the disk read ~ However, WD's hard drive is not recommended to configure this value ~ Generally, the configuration is 16/32 optimization, however, the recommended value for WD drives is 4/8. The maximum value of this value can be configured using the Hd

(inbuffer, outbuffer, Null 0, 0, Boxsize, Boxsize, Null Kvimageedgeextend); if (Error) { NSLog (@ "error from convolution%ld", error); } Cgcolorspaceref colorspace = Cgcolorspacecreatedevicergb (); Cgcontextref CTX = Cgbitmapcontextcreate ( Outbuffer.data, Outbuffer.width, Outbuffer.height, 8, Outbuffer.rowbytes, ColorSpace, Kcgimagealphanoneskiplast); Cgi

= vimageboxconvolve_argb8888 (inbuffer, outbuffer, NULL,0,0, Boxsize, Boxsize, NULL, kvimageedgeextend); + ACgcolorspaceref ColorSpace =Cgcolorspacecreatedevicergb (); theCgcontextref CTX = cgbitmapcontextcreate (Outbuffer.data, Outbuffer.width, Outbuffer.height,8, Outbuffer.rowbytes, ColorSpace, Cgimagegetbitmapinfo (image. Cgimage)); + -Cgimageref Imageref =cgbitmapcontextcreateimage (CTX); $UI

*pixelbuffer2 = malloc (Cgimagegetbytesperrow (IMG) *cgimagegetheight (IMG)); the Vimage_buffer OutBuffer2; theOutbuffer2.data =PixelBuffer2; theOutbuffer2.width =cgimagegetwidth (IMG); theOutbuffer2.height =cgimagegetheight (IMG); -Outbuffer2.rowbytes =Cgimagegetbytesperrow (IMG); in the //convolves a region of interest within an ARGB8888 source image by an implicit M x N kernel that have the effect of a B Ox filter. theError = vimageboxconvolve_argb8888 (inbuffer, outbuffer2, NULL,0,0, Bo

First KindLoad a picture with the UIImage object firstAnd then convert it into cgimageref and put it in cgcontext to edit it.The second KindCreate cgimageref with the Cgimagecreate functionAnd put the cgimageref in the Cgcontext to edit it.Third KindWith Cgimagecreatecopy or Cgimagecreatecopywithcolorspace.function copyCGImageRefCGImageCreate(size_t width, //图片的宽度size_t height, //图片的高度size_t bitsPerComponent, //图片每个颜色的bits，比如rgb颜色空间，有可能是5 或者 8 ==size_t bitsPerPixel, //每一个像素占用的buts，15 位24位 32位等等s

, 0, 0, 0, 64.9f, 0, 0.9f, 0, 0, 64.9f, 0, 0, 0.9f, 0, 64.9f, 0, 0, 0, 1.0f, 0}, {2.1f,-1.4f, 0.6f, 0.0f,-31.0f,-0.3f, 2.0f,-0.3f, 0.0f, -31.0f,-1.1f,-0.2f, 2.6f, 0.0f,-31.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f}, {0.8f, 0.3f, 0.1f, 0.0f, Hangzhou, 0.1f, 0.9f, 0.0f, 0.0f, Hangzhou, 0.1f, 0.3f, 0.7f, 0.0f, Hangzhou, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f}, {1.0f, 0.0f, 0.0f, 0.0f, -66.6f, 0.0f, 1.1f, 0.0f, 0.0f,-66.6f, 0.0f, 0.0f, 1.0f, 0.0f,-66.6f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f }}; @ interface CPUImageFilterUtil:

enable the IDE Hard Disk Block Mode The Block Mode combines multiple sectors into one block. Each time multiple sectors are accessed, the data transmission rate during multi-sector access can be added. With this feature enabled, the BIOS will automatically detect whether the hard disk supports block mode (currently most hard disks already have this feature), and 64 KB of data can be sent each time the disk is interrupted. Step 1. Start the computer and press del to go To the BIOS settings page

); if(!error) {Error= vimageboxconvolve_argb8888 (outbuffer, inbuffer, NULL,0,0, Boxsize, Boxsize, NULL, kvimageedgeextend); if(!error) {Error= vimageboxconvolve_argb8888 (inbuffer, outbuffer, NULL,0,0, Boxsize, Boxsize, NULL, kvimageedgeextend); }} cgcolorspaceref ColorSpace=Cgcolorspacecreatedevicergb (); Cgcontextref CTX=cgbitmapcontextcreate (Outbuffer.data, Outbuffer.width, Outbuffer.height,8, Outbuffer.rowbytes, Colorspa CE, (cgbitmapinfo

] initWithFrame:self.bounds]; Cgcolorspaceref ColorSpace=Cgcolorspacecreatedevicergb (); floatWidth=Self.bounds.size.width; floatheight=Self.bounds.size.height; //256=10000000 intBitspercomponent=8; //Rgba*8*width intbytesperrow=4*8*width; Cgcontextref Context=cgbitmapcontextcreate (NULL, width, height, bitspercomponent, Bytesperrow, ColorSpace, Kcgimagealphapremultipliedlast|Kcgbitmapbyteorde

Th_oes, backingwidth); Glgetrenderbufferparameterivoes (Gl_renderbuffer_oes, Gl_renderbuffer_height_oes, backingHeight); Nsinteger x = 0, y = 0, Width = backingwidth, height = backingheight; Nsinteger datalength = width * Height * 4; Glubyte *data = (glubyte*) malloc (datalength * sizeof (glubyte)); Read pixel data from the framebuffer glpixelstorei (gl_pack_alignment, 4); Glreadpixels (x, y, width, height, Gl_rgba, gl_unsigned_byte, data); Create a cgim

);Inbuffer. Data = (void*)cfdatagetbyteptr(inbitmapdata); //create vimage_buffer for outputPixelbuffer = malloc(cgimagegetbytesperrow(IMG) *cgimagegetheight(img));Outbuffer. data = Pixelbuffer;Outbuffer. width = cgimagegetwidth(IMG);Outbuffer. height = cgimagegetheight(IMG);Outbuffer. rowbytes = cgimagegetbytesperrow(IMG);nsinteger windowr = boxsize/2;cgfloat sig2 = WINDOWR/ 3.0;if (windowr>0) {sig2 =-1/(2*sig2*sig2);}int16_t *kernel = (int16_t*)malloc(boxsize*sizeof(int16_t));int32_t sum = 0; f

The way iOS is synthesized, I know two other kinds:1: Direct synthesis using uiimageMethod: The picture is drawn to the context by the context to which it will be synthesized, and then the resultant picture-(uiimage*) Ntesatcoverlaywith: (uiimage*) overlayimage{Uigraphicsbeginimagecontext (self.size);[Self Drawatpoint:cgpointzero];[OverlayImage drawinrect:cgrectmake (0, 0, self.size.width, self.size.height) Blendmode:kcgblendmodenormal alpha:0. 9999999];UIImage *combinedimage = Uigraphicsgetimag

size: (cgsize) Size radius: (nsinteger) r{//the size of Cgcontextref int W = size.width; int h = size.height; UIImage *img = image; Cgcolorspaceref colorspace = Cgcolorspacecreatedevicergb (); Cgcontextref context = Cgbitmapcontextcreate (NULL, W, H, 8, 4 * W, colorspace, Kcgimagealphapremultipliedfirst); CGRect rect = CGRectMake (0, 0, W, h); Cgcontextbeginpath (context); A

In the near future, we need to add the video capture function to the iPhone's streaming application to sort out our actual work experience. Step 1. Use FFMPEG to obtain the image information in the stream and perform decoding. av_read_frame(pFormatCtx, packet);avcodec_decode_video2(videoCodecCtx, DecodedFrame, frameFinished, packet); Step 2. convert an image into a custom IOS uiimage First, convert avframe In YUV format to avpicture in RGB format. img_convert_ctx = sws_getContext(

CVImageBufferRef imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer); // Lock the base address of the pixel buffer CVPixelBufferLockBaseAddress(imageBuffer, 0); // Get the number of bytes per row for the pixel buffer void *baseAddress = CVPixelBufferGetBaseAddress(imageBuffer); // Get the number of bytes per row for the pixel buffer size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer); // Get the pixel buffer width and height size_t width = CVPixelBu

01.//Add text to UIImage 02. 03.-(UIImage *)addText:(UIImage *)img text:(NSString *)text1{ 04. 05. int w = img.size.width; 06. 07. int h = img.size.height; 08. 09. //lon = h - lon; 10. 11. CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); 12. 13. CGContextRef context = CGBitmapContextCreate(NULL, w, h, 8, 4 * w, colorSpace, kCGImageAlphaPremultipliedFirst); 14. 15.