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DCT-BASED TECHNIQUE WITH RHOMBUS SCANNING FOR IMAGE COMPRESSION
DCT-BASED TECHNIQUE WITH RHOMBUS SCANNING FOR IMAGE COMPRESSION
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机译：基于DCT的带菱形扫描的图像压缩技术
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摘要
A DCT-based technique with rhombus scanning for image compression. A flipped-kernel discrete cosine transform is applied to an eight by eight pixel sub-block of the sixteen by sixteen pixel block. A visually insignificant information is removed from the eight by eight pixel sub-block. A quantization method is used to remove the visually insignificant information. A quantized discrete cosine transform coefficient is scanned of the sixteen by sixteen pixel block. The quantized discrete cosine transform coefficient is scanned according to a rhomboid pattern. A portion of a digital image may be divided into a sixteen by sixteen pixel block.
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机译：基于DCT的技术，具有菱形扫描功能以进行图像压缩。将翻转核离散余弦变换应用于16 x 16像素块的8 x 8像素子块。从八乘八像素子块中删除视觉上无关紧要的信息。量化方法用于删除视觉上无关紧要的信息。对十六乘十六像素块扫描量化的离散余弦变换系数。根据菱形图案扫描量化的离散余弦变换系数。数字图像的一部分可以被划分为十六乘十六像素块。
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