'ImageConverter' 无法将位图转换为字节数组。得到错误

Question

错误是： “'ImageConverter' 无法将 'System.Drawing.Bitmap' 转换为 'System.Byte'。”

dim YZ_2D_blobmap( 150 * 100 * 3 ) as byte 
dim heatmap_PictureBox_Bitmap   as Bitmap

' . . .heatmap_PictureBox_Bitmap loaded with 150 x 100 bitmap

   YZ_2D_blobmap = Bitmap_to_Bytes( heatmap_PictureBox_Bitmap ) <<<<<<< error
    bytes_to_file( YZ_2D_blobmap, YZ_2D_BLOBMAP_BLB_PATHNAME )

        Function Bitmap_to_Bytes(  img as Bitmap ) as byte()
            dim bytes_ImageConverter as ImageConverter = New ImageConverter()
            return bytes_ImageConverter.ConvertTo( img, GetType( byte ))
         end function

         Sub bytes_to_file( byte_buffer, pathname )
            system.io.file.writeAllBytes( pathname, byte_buffer  )
         End Sub

Answer 1

您告诉 ImageConverter 将 Bitmap 转换为 Byte 而不是 Byte 数组。这个：

return bytes_ImageConverter.ConvertTo( img, GetType( byte ))

应该是这样的：

Return bytes_ImageConverter.ConvertTo(img, GetType(Byte()))

错误信息甚至告诉你：

'ImageConverter' is unable to convert 'System.Drawing.Bitmap' to 'System.Byte'.

没有关于数组的内容。

'ImageConverter' 无法将位图转换为字节数组。得到错误

'ImageConverter' can't convert a Bitmap to a byte array. gets error

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bitmap