Considering the disadvantages of consuming too much time by the bit-plane scanning by EBCOT(Embedded Block Coding With Optimized Truncation) encoder of JPEG2000,a fast algorithm of bit-plane scanning is proposed for the progressive transmission of gray medical images based on the characteristics of the three-pass scanning.

Approach to the algorithm of gray image edge detection in different illuminati on conditions;

A gray image representation algorithm by using the direct triangle and rectangle non-symmetry and anti-packing model;

The Conversion Program Design Of Color Images And Gray Image;

The gray-level image of solid woven fabrics is captured by a color scanner and converted into digital files,then enhanced images are obtained by a gray-level morphological operation.

With visual frequency sensitivity,gray scale enhancement,Just Noticeable Distortion(JND) on gray-level image,this arithmetic selects DCT-block to compress watermarking image and make automorphic disorder,then embeds watermarking.

Research on edge detection of noise gray-scale image based on multi-structuring elements;

And based on the rule of edge detection of gray-scale images,this paper also proposes the range of parameters in template of CNN for detecting edges of gray-scale images.

A nonlinear filtering algorithm was presented to remove salt and pepper noise from gray-scale image while preserving details.