Aimed at the application background of on-board video image on the battlefield,through SPIHT and LZC algorithm research,on the basis of LZC algorithm,wavelet coefficients scan mode is changed and on-board image compression coding algorithm NLZC based on the wavelet transform is raised.

A real-time despinning method for onboard video image was proposed.

This paper designs a new method which combines the wavelet transform and edge detection to implements the compression of pill images.

This paper designs the pill area as the interesting area and gets a good compression result for pill images.

This method combines the compression properties of pill images and takes the pill area as the interested area,then givs the pill area complete recovery and process the background area with Wavelet JPEG 2000 compression.

An a solution to how to test the frequency differences between picture carrier and sound carrier and to test the frequency stability of the two carriers without stopping sending television programs are discussed in the paper.

If human eyes can not observe the diversifications of the carrier image before and after hidi.

This paper presents an algorithm of digital watermarks based on the human visual system and the discrete cosine transform(DCT) of images,which uses a black and white image as the watermark and a true color image as the carrier image.