interleave_channelsinterleave_channelsInterleaveChannelsInterleaveChannelsinterleave_channels（算子）

名称

interleave_channelsinterleave_channelsInterleaveChannelsInterleaveChannelsinterleave_channels — 从多通道图像创建交错图像。

签名

描述

算子 interleave_channelsinterleave_channelsInterleaveChannelsInterleaveChannelsInterleaveChannelsinterleave_channels creates an InterleavedImageInterleavedImageInterleavedImageInterleavedImageinterleavedImageinterleaved_image from the input MultichannelImageMultichannelImageMultichannelImageMultichannelImagemultichannelImagemultichannel_image containing three or four channels. This is useful to prepare a color image for visualization, e.g., by converting it to a .NET Bitmap.

Pixel format

The format of the pixels in InterleavedImageInterleavedImageInterleavedImageInterleavedImageinterleavedImageinterleaved_image is specified with PixelFormatPixelFormatPixelFormatPixelFormatpixelFormatpixel_format. Possible formats are 'rgb'"rgb""rgb""rgb""rgb""rgb", 'rgba'"rgba""rgba""rgba""rgba""rgba", 'argb'"argb""argb""argb""argb""argb", 'bgr'"bgr""bgr""bgr""bgr""bgr", 'bgra'"bgra""bgra""bgra""bgra""bgra", and 'abgr'"abgr""abgr""abgr""abgr""abgr" for BYTE images and 'rgb48'"rgb48""rgb48""rgb48""rgb48""rgb48", 'bgr48'"bgr48""bgr48""bgr48""bgr48""bgr48", 'rgba64'"rgba64""rgba64""rgba64""rgba64""rgba64", 'bgra64'"bgra64""bgra64""bgra64""bgra64""bgra64", 'argb64'"argb64""argb64""argb64""argb64""argb64" 和 'abgr64'"abgr64""abgr64""abgr64""abgr64""abgr64" for UINT2 images, where 'a' denotes the 4th ('alpha') channel. Be aware that, in contrast to gen_image_interleavedgen_image_interleavedGenImageInterleavedGenImageInterleavedGenImageInterleavedgen_image_interleaved, LittleEndian byte ordering is used in PixelFormatPixelFormatPixelFormatPixelFormatpixelFormatpixel_format。

Alpha channel

The alpha channel can be defined in the following ways:

Row alignment

The number of bytes between the beginning of two rows in the output image can be set in RowBytesRowBytesRowBytesRowBytesrowBytesrow_bytes, e.g., to fulfill specific alignment criteria. Set RowBytesRowBytesRowBytesRowBytesrowBytesrow_bytes to 'match'"match""match""match""match""match" if no additional padding is required. RowBytesRowBytesRowBytesRowBytesrowBytesrow_bytes must be at least the number of bytes in PixelFormatPixelFormatPixelFormatPixelFormatpixelFormatpixel_format times the width of MultichannelImageMultichannelImageMultichannelImageMultichannelImagemultichannelImagemultichannel_image。

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 在内部数据级别上自动并行化。

参数

Example (C#)

  HTuple type, width, height;
  HImage patras = new HImage("patras");

  HImage interleaved = patras.InterleaveChannels("argb", "match", 255);
  IntPtr ptr = interleaved.GetImagePointer1(out type, out width, out height);

  Image img = new Bitmap(width/4, height, width,
                         PixelFormat.Format32bppArgb, ptr);

  pictureBox.Image = img;

另见

gen_image_interleavedgen_image_interleavedGenImageInterleavedGenImageInterleavedGenImageInterleavedgen_image_interleaved

模块

基础

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