如何将ImageSource转换为Byte数组? [英] How to convert ImageSource to Byte array?

问题描述

我使用LeadTools进行扫描.

I use LeadTools for scanning.

我想将扫描图像转换为字节.

I want to convert scanning image to byte.

void twainSession_AcquirePage(object sender, TwainAcquirePageEventArgs e)
 {
   ScanImage = e.Image.Clone();
   ImageSource source = RasterImageConverter.ConvertToSource(ScanImage, ConvertToSourceOptions.None);
 }

如何将ImageSource转换为Byte数组?

How to convert ImageSource to Byte array?

推荐答案

除非明确需要ImageSource对象，否则无需转换为一个.您可以使用以下代码直接从Leadtools.RasterImage获取一个包含像素数据的字节数组:

Unless you explicitly need an ImageSource object, there's no need to convert to one. You can get a byte array containing the pixel data directly from Leadtools.RasterImage using this code:

int totalPixelBytes = e.Image.BytesPerLine * e.Image.Height;
byte[] byteArray = new byte[totalPixelBytes];
e.Image.GetRow(0, byteArray, 0, totalPixelBytes);

请注意，这仅给您原始像素数据.

Note that this gives you only the raw pixel data.

如果您需要一个包含完整图像(例如JPEG)的内存流或字节数组，则也无需转换为源.您可以像这样使用Leadtools.RasterCodecs类:

If you need a memory stream or byte array that contains a complete image such as JPEG, you also do not need to convert to source. You can use the Leadtools.RasterCodecs class like this:

RasterCodecs codecs = new RasterCodecs();
System.IO.MemoryStream memStream = new System.IO.MemoryStream();
codecs.Save(e.Image, memStream, RasterImageFormat.Jpeg, 24);

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