代码名称：ImageHandler: A Component to Copy an HDC Area to a JPEG File 代码说明：将DC内数据保存为JPG图片 工具/平台：VC6 -code name : ImageHandler : A Component Copy to an HDC Area to a JPEG File code Descr iption : DC within the data retention tool for JPG Photo

data hasnt been embedded in dc coeffs,therefore results in a better histographic response.unlike methods like jsteg where quantized coeffs wid value 1 are not altered because they can be made equal to zero,here they can acquire a value of -1,instead.

在内存中建8位位图BMP 这是我在网上找了好久才找到的, 不用兼容DC,将像数矩阵直接成BMP. 当然,代码不完美,多处要自己修整. FormatImage -Built in memory 8-bit bitmap BMP This is what I look for a long time before the Internet found, not compatible with DC, would like matrix directly into the BMP.

JPEG编解码：利用DCT系数矩阵的直流分量交流分量分别进行编码，得到JPEG矩阵-JPEG codec: the AC component by the DC component of the DCT coefficient matrix encoded separately to obtain a matrix JPEG