convert jpeg to raw format

];editedimage = Uigraphicsgetimagefromcurrentimagecontext(); UIButton *imagebutton = [UIButton buttonwithtype:Uibuttontyp Ecustom];ImageButton. frame = CGRectMake(ten, ten, +) ;[ImageButton setimage: Editedimage forstate:uicontrolstatenormal];[Self.View addsubview: ImageButton];[ImageButton addTarget: self action:@selector( Imageaction:)forcontrolevents:uicontroleventtouchupinside];[IPC dismissmodalviewcontrolleranimated:YES];} Else {NSLog (@ "MEdia");}The above code is when you choose a pi

This article was reproduced from: http://blog.csdn.net/southcamel/article/details/8305873In simple terms,Yuv:luma (Y) + chroma (UV) format, typically sensor supports YUV422 format, that is, the data format is output in y-u-y-v orderRGB: Traditional red-green-blue format, such as RGB565, whose 16-bit data

sensor signal Output YUV, RGB, RAW DATA, JPEG 4 different waysCategory: Camera 2012-12-17 08:59 10085 people read reviews (5) Favorite reports In simple terms,Yuv:luma (Y) + chroma (UV) format, typically sensor supports YUV422 format, that is, the data format is output in y-

One, JPEG is a compressed photo The basic difference is that the RAW file will fully retain the image of each pixel message and information, but JPEG is a camera based on a compromise compression, so the size of the two files are significantly different, RAW files can be

advantage of this format is that when the network is slow, you can see the outline of the picture to know what the picture is loading. You'll notice this technique when you open a larger picture on some Web sites. If your speed and the same as the snail, you should be able to see the effect, in fact, you in Qzone, Weibo and other large sites you will often see this effect. The PHP code can also convert i

I. Overview of the JPEG principle Second, the JPEG principle detailed analysis and the compression algorithm process 1. Color model Conversion (color models) 2. DCT (discrete cosine Transform discrete cosine transform) 3. Data quantification 4. Reorder DCT Results 5. DC coding based on differential pulse coded modulation 6, RLE Code 7. Paradigm Huffman Codin

Jpg The JPG full name is JPEG. A JPEG picture stores a single raster image in 24-bit color. JPEG is a platform-independent format that supports the highest level of compression, although this compression is lossy. An asymptotic JPEG file supports interleaving. JPG function

Currently, digital cameras are stored in the same format as JPEG and Tiff, as well as raw. What kind of format is raw? Under what circumstances should I use this raw format? What are th

numberAfter 4bit for QT accuracy, 0=8bit, otherwise 16bitThe last is the QT information, the length is 64 integer timesTo view the DQT information for a test picture,Length is 0x43, decimal is 6700 for QT number 0 with accuracy of 8bitThen 64 bytes is the QT information byteNote:Here DQT format reference from Http://www.opennet.ru/docs/formats/jpeg.txtTry to replace these 64 bytes,Before and after contrast, can find the change of pictureIf you only a

In the Linux based video surveillance acquisition system, the camera captured a frame of video image data are generally hardware automatically compressed into the JPEG format, and then saved to the camera device buffer. If you want to display the collected JPEG format on the local LCD screen, Since our Linux system doe

VC + + in JPEG and BMP image format should be often encountered, JPEG compared to BMP in the image size has a great advantage.This article focuses on using the existing CImage class to convert in memory, without saving as a file, or introducing a third-party library.The Libjpeg library also supports memory reading and

Label: style blog HTTP color Io OS AR Hard raw format data recovery 1. raw format reason2. raw format Solution Experience: 1. raw format rea

About how to format a mobile hard disk in windows 7 in RAW format, I don't know how to solve the problem. The E and F partitions of the mobile hard disk are always unrecognizable and always prompt formatting, there are a lot of important things in the two disks,I don't want to format it. I want to see how it can be sol

support sparse files, images in this format only use the space actually used by the data recorded in them.The old format is bare, that is, naked. You can simulate an image in raw format by dd a file. The performance is good because it is bare and thorough. Currently, the default formats of KVM and xen seem to be the s

I used the iimage interface in the project and found that the function is very powerful. Now I feel that the only drawback is the speed problem. I had to handle many format pictures and write the encoding/decoding by myself, I wrote a BMP file, because the BMP RGB data is well read, and it is easy to save the BMP file. The encoding and decoding of compressed files such as JPEG is very troublesome, and my le

Camera Raw Basic Use method Taking photos in RAW format is a big advantage for digital SLR cameras. Raw format contains a large number of image information, compared to the JPEG format