c# - 以高压缩级别压缩 JP2 (JPEG2000) 图像

Question

从数据库中读取图像后，我需要将该图像转换为 JP2 (JPEG2000)

更新:

我使用 FreeImage 将图像转换为 JP2

   // Load bitmap           
   FIBITMAP dib = FreeImage.LoadEx(imageName);
// Check success
if (dib.IsNull)
{
    MessageBox.Show("Could not load Sample.jpg", "Error");
    return;
}    

// Convert Bitmap to JPEG2000 and save it on the hard disk
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_JP2, dib, "Image.jp2", FREE_IMAGE_SAVE_FLAGS.DEFAULT);

// Unload source bitmap
FreeImage.UnloadEx(ref dib);

现在，我需要对这张图片进行高压缩级别的压缩!

Answer 1

我找到了答案

   // Load bitmap           
   FIBITMAP dib = FreeImage.LoadEx(imageName);
    //
    Check success
    if (dib.IsNull)
    {
        MessageBox.Show("Could not load Sample.jpg", "Error");
        return;
    }    

    // Convert Bitmap to JPEG2000 and save it on the hard disk
    FreeImage.Save(FREE_IMAGE_FORMAT.FIF_JP2, dib, "Image.jp2", FREE_IMAGE_SAVE_FLAGS.EXR_PXR24 | FREE_IMAGE_SAVE_FLAGS.EXR_LC);

    // Unload source bitmap
    FreeImage.UnloadEx(ref dib);