colorspace udma

When we do some image processing, we often involve RGB565 this kind of image data format. Because of its 2 bytes per pixel, the use of RGB565 without pixel transparency can basically guarantee the color of the image and reduce the size of the image data, saving bandwidth. Therefore, RGB565 will be a common format for the more economical image processing.Here's a description of how to convert a RGB565 of raw image data into an UIImage object in iOS. See the following code:-(uiimage*) imageFromRGB

(IMG); Inbuffer.rowbytes=Cgimagegetbytesperrow (IMG); Inbuffer.data= (void*) cfdatagetbyteptr (inbitmapdata); Pixelbuffer= malloc (Cgimagegetbytesperrow (IMG) *cgimagegetheight (IMG)); 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, kvimageedgeextend); if(!error) {Error= vimageboxconvolve_argb8888 (o

Before and after the first slice treatment effect comparison:Before processing:After processing:Recent project needs, the picture shows two states, one is the original color, the other is black and white, but for these two states our server-side only to provide us with a set of color pictures, our front-end needs to handle the picture according to the state, so I consulted Baidu, found the following method:-(uiimage*) Grayscale: (uiimage*) animage type: (int) Type {Cgimageref imageref = animage.

Numberwithinteger:nsunderlinestylesingle] Range: Titlerange];[Button Setattributedtitle:titleForstate:uicontrolstatenormal];[Button Setbackgroundcolor:[uicolor Redcolor];[Button.titlelabel Setfont:[uifont systemfontofsize:14];[Self.view Addsubview:button]; Tired and annotated------[Insidebutton settitle:@] Please enter your doctor's name "Forstate:uicontrolstatenormal";[Insidebutton settitlecolor:[uicolor Redcolor] forstate:uicontrolstatenormal];//can set colorInsideButton.titleLabel.

[Box.actionButton.layer Setmaskstobounds:yes];[Box.actionButton.layer setcornerradius:10.0];Set rectangle four fillet radius//Border Width [box.actionButton.layer setborderwidth:1.0];There are two ways to set the color of the border: the first is as follows: Cgcolorspaceref colorspace = Cgcolorspacecreatedevicergb ();Cgcolorref COLORREF = Cgcolorcreate (ColorSpace, (cgfloat[]) {0, 0, 0, 1}); [Box.actionButt

;rc.i_qp_constant=0; pparam->rc.i_qp_max=0; pparam->rc.i_qp_min=0; Pparam->i_bframe_adaptive = X264_b_adapt_trellis; Pparam->i_fps_den = 1; Pparam->i_fps_num = 25; Pparam->i_timebase_den = pparam->i_fps_num; Pparam->i_timebase_num = pparam->i_fps_den; */Pparam->i_csp=CSP; X264_param_apply_profile (Pparam, x264_profile_names[5]); Phandle=X264_encoder_open (Pparam); X264_picture_init (ppic_out); X264_picture_alloc (ppic_in, CSP, Ppara

); -------------------------------------------------------------------------- Typedef struct{Int width; [in] (shocould be a multiple of 16, Max is)Int height; [in] (shocould be a multiple of 16, Max is)Void * handle; [out]} Xvid_dec_param; When creating decoder, you have to provide it with height and width ofImage to decode (this is _ not _ in the bytestream itself !).In handle a unique handle is given back, that has to be used to identifyThis instance of decoding. Used in: xerr = xvid_d

ArticleDirectory Move left and right Rotate Zoom Http://disanji.net/2010/12/18/ios-realize-animation-effect/ ByFgamersPosted onDecember 18, 2010 89 reading comments (0) The simplest animation effect in IOS is that there are no key frames, such as moving left and right, beating up and down, rotating, and scaling. The key frame should be a little more complex, and the path should be set. IOS can achieve the preceding simple animation effect without the help of heav

, (Jmin:jmax)-j+w+1);B (I,J) = SUM (f (:). *i (:))/sum (f (:));EndEnd% function for bilateral filtering of color imagesfunction B = Bfltcolor (a,w,sigma_d,sigma_r)% converts the input RGB image into the CIE color spaceIf exist (' applycform ', ' file ')A = Applycform (A,makecform (' Srgb2lab '));ElseA = ColorSpace (' LabEnd[x, Y] = Meshgrid (-w:w,-w:w);G = exp (-(x.^2+y.^2)/(2*sigma_d^2));Sigma_r = 100*sigma_r;% for filter processingDim = Size (A);B =

; each must have been converted to HSV colorspace using bgr2hsv() @param n the number of images in imgs @return Returns an un-normalized HSV histogram for /a imgs*/histogram* calc_histogram( IplImage** imgs, int n ){ IplImage* img; histogram* histo; IplImage* h, * s, * v; float* hist; int i, r, c, bin; histo = malloc( sizeof(histogram) ); histo->n = NH*NS + NV; hist = histo->histo; memset( hist, 0, histo->n * sizeof(float) ); for( i

read and agree to the above terms "; ContentLabel1.adjustsFontSizeToFitWidth = YES; // fixed width and adaptive font size [Self. view addSubview: contentLabel1]; // *********** If it is a Button, there is only one small difference as above: [MyButton. titleLabel sizeToFit]; MyButton. titleLabel. adjustsFontSizeToFitWidth = YES; // Set the border color and rounded corner [MyButton. layer setMasksToBounds: YES]; [MyButton. layer setCornerRadius: 10.0]; // you can specify the radius of the four r

components in the memory area on each pixel of the screen. For example, if the 32-bit pixel and RGB color format are used, in the RGBA color format, the bits required for each component on each pixel of the screen is 32/4 = 8. The bytesPerRow parameter indicates the number of bytes used by each row in the rendered memory area. The colorspace parameter is used for the bitmap context in the rendered memory area ". The bitmapInfo parameter specifies whe

(); UIImageView * imageView = [[UIImageView alloc] initWithFrame: CGRectMake (20, 20,100,100)]; imageView. image = image; [self addSubview: imageView];} void drawLinearGradient (CGContextRef context, CGRect rect, CGColorRef startColor, CGColorRef endColor) {CGColorSpaceRef colorSpace = Hangzhou (); CGFloat locations [] ={ 0.0, 1.0}; NSArray * colors = @ [(_ bridge id) startColor, (_ bridge id) endColor]; CGGradientRef gradient = CGGradientCreateWithC

[IOS development] changing the pixel value of UIImage -(UIImage *) imageBlackToTransparent :( UIImage *) image {// allocate memory const int imageWidth = image. size. width; const int imageHeight = image. size. height; size_t bytesPerRow = imageWidth * 4; uint32_t * rgbImageBuf = (uint32_t *) malloc (bytesPerRow * imageHeight); // create context CGColorSpaceRef colorSpace = trim (); CGContextRef context = CGBitmapContextCreate (rgbImageBuf, imageWidth

[Plain]Static UIImage * shrinkImage (UIImage * original, CGSize size){CGFloat scale = [UIScreen mainScreen]. scale;CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB ();CGContextRef context = CGBitmapContextCreate (NULL, size. width * scale, size. height * scale, 8, 0, colorSpace, kCGImageAlphaPremultipliedFirst );CGContextDrawImage (context, CGRectMake (0, 0, size. width * scale, size. height * scale

The first thing to introduce is the Python Imaging Library, using the following methods: Copy Code code as follows: From PIL import Image From PiL. Exiftags Import TAGS def get_exif_data (fname):"" "Get embedded EXIF data from image file." "ret = {}Tryimg = Image.open (fname)If Hasattr (IMG, ' _getexif '):Exifinfo = Img._getexif ()If Exifinfo!= None:For tag, value in Exifinfo.items ():decoded = Tags.get (tag, tag)Ret[decoded] = valueExcept IOError:print ' IOError ' + fnamereturn

[Box.actionButton.layer Setmaskstobounds:yes]; [Box.actionButton.layer setcornerradius:10.0]; Set rectangle four fillet radius //Border width [box.actionButton.layer setborderwidth:1.0]; There are two ways to set the color of a border: the first is as follows: cgcolorspaceref colorspace = Cgcolorspacecreatedevicergb (); Cgcolorref COLORREF = Cgcolorcreate (ColorSpace, (cg

trouble ~ at this time the good alias will have to deal with it! You can add this line in ~/.BASHRC: "Alias grep= ' grep--color=auto '" and then "source ~/.BASHRC" to take effect immediately! So every time you run grep, he'll automatically add color to your display.Use DMESG to list the core information, and then grep to find the line containing the ETH, in the first two lines of the keyword row and the last three lines are also caught out of the display[Email protected] ~]# DMESG | Grep-n-a3-b

:/EXPORT/HOME/SUNKY/MNT/NFSNote:here We assume 10.140.133.9 is the NFS server host IP address, of course, where can use the host name, and in the Local/etc/hosts file to increase the definition of the server IP. /Export/home/sunky shared directory for the server.So can the Linux client Through/mnt/nfs to access other Linux system or UNIX system out of NFS Share file. Above operations in Redhat as Server 3, Redflag server4.1, SuSE Server 9, and Solaris 7, Solaris 8, Solaris 9 for x86 amp ; SPARC

sector. This makes it easy to panic when the machine is running. You can use special tool software for troubleshooting, such as serious damage can only replace the hard drive. In addition, for motherboards that do not support UDMA 66/100, you should pay attention to the setting of the operating mode of the CMOS hard disk. "CPU overclocking"Overclocking increases the CPU's working frequency, and may also make its performance unstable. The reason, the