To achieve both transmission delay time minimization and high compression of image data in a simple configuration, when an image transmission device for compressing and transmitting image data to be transmitted, transmits image data of a size larger than a presently specified image size.
The image transmission method, in which image data are compressed and transmitted, comprises processes of: performing a color difference signal processing which reduces a Cb or Cr color difference signal effective range by a coordinate transformation using a correlation with a Y luminance signal; performing a compression processing of an image data composed of the resulting YCbCr luminance color difference signal; and outputting image data made by synchronizing the compressed image data with a clock signal having a synchronous relationship with a non-compressed image data clock.
NONAKA TOMOYUKI
KOMI HIRONORI
INADA KEISUKE
Yuji Toda
Shigemi Iwasaki
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