JPEG image decoding and jpeg Decoding
Introduction
JPEG is a widely used standard method for compressing images. JPEG is the abbreviation of JointPhotographicExpertsGroup. A file in this compression format is generally called JPEG. The common
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.
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Contact information: Yu Tao
In JPEG, there is a type of progressive image that you may have seen on the network, that is, the one that first appears a
JPEG (joint photographic Experts Group) is an expert group composed of two organizations, ISO and IEC, responsible for developing static digital image data compression coding standards, the algorithm developed by this expert group is known as the
1. JPEG file format Overview
(This text is taken from Yun Feng's "JPEG simple document". I think it is easy to write clearly. If you are interested, you can write it directly)
Appendix: JPEG file format
~~~~~~~~~~~~~~~~-File Header (2 bytes): $ ff, $
Picture compression is how important, perhaps many people may not have an intuitive understanding, for example, a 800x800 size of ordinary pictures, if not compressed, probably around 1.7MB, this volume if the text file is enough to save a 920,000
AspJpeg is a powerful image processing component based on the Microsoft IIS environment, and there are not many Chinese articles on the network for detailed and in-depth introduction, even if there is a general only involves picture thumbnails and
The image format is used to store images on a computer. Common storage formats include BMP, JPG, Tiff, GIF, PCX, TGA, EXIF, fpx, SVG, PSD, CDR, PCD, DXF, UFO, EPS, AI, raw, etc.
BMP Image File Format
BMP is an image file format unrelated to hardware
BMP is a standard Windows Image format compatible with DOS and Windows. The BMP format supports RGB, index color, grayscale, and bitmap color modes. You can specify the windows or OS/2 & reg; format and bit depth for the image. You can also specify
1, what is AspJpeg?
AspJpeg is a powerful image processing component based on the Microsoft IIS environment, and there are not many Chinese articles on the network for detailed and in-depth introduction, even if there is a general only involves
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