Sometimes image processing units inherit images in raster bitmap format only, so that processing is to be carried without knowledge of past operations that may compromise image quality (e.g., compression).
用海康采集卡做个项目 需要连续抓拍及缓冲图片 用SDK本身提供的图像抓拍太费时 调用间隔较小时导致画面卡顿现象；改用原始图像数据流回调函数RegisterImageStreamCallback进行抓图 但回调函数帧为YUV420格式 需要转成Bitmap才用用于显示及本地查看 在网上找了好多都是基于R Y+1 4075 V 128 G Y 0 3455 U 128 – 0 7169 V 128 B Y+1 779 U 128 公式运算且大多是C语言 改成C#后效率一直不高（尝试过消除浮点运算
DIZipWriter is a Delphi component to create PKZip-compatible ZIP archives. Archive output is based on TStream and writes directlyfiles (TFileStream), memory (TMemoryStream), or database BLOBs(TBlobStream). DIZipWriter's functionality is contained in
