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LoadPsdChannel Method

Loads the specified channel from the specified PSD file.
Public Function LoadPsdChannel( _ 
   ByVal fileName As String, _ 
   ByVal bitsPerPixel As Integer, _ 
   ByVal order As CodecsLoadByteOrder, _ 
   ByVal channelIndex As Integer, _ 
   ByVal channelInfo As CodecsPsdChannelInfo _ 
) As RasterImage 


A String containing the name of the image file to load.

Resulting image pixel depth. Valid values are:

Value Meaning
0 Keep the original file's pixel depth (Do not convert).
1 to 8 The specified bits per pixel in the resulting image.
12 12 bits per pixel in the resulting image.
16 16 bits per pixel in the resulting image.
24 24 bits per pixel in the resulting image.
32 32 bits per pixel in the resulting image.
48 48 bits per pixel in the resulting image.
64 64 bits per pixel in the resulting image.

The desired color order.

Index of the channel to load. This index is zero-based. Pass 0 to load the first channel, 1 to load the second channel, etc.

a CodecsPsdChannelInfo object to be updated with information about the loaded channel. Pass a null reference for this parameter if channel information is not needed.

Return Value

The RasterImage object that this method loads.


Use this method to load PSD files only.

This method works similarly to a normal Load or LoadAsync methods, except that it loads only a channel from a PSD file. It loads the channel specified in channelIndex.

Before calling this method, you may need to get or set file information, such as the number of channels on the file. Refer to CodecsPsdImageInfo.

The number of channels in a file is indicated in CodecsPsdImageInfo.Channels. If this number is 0, the file does not contains any channels and this method should not be called.


This example loads all channels from a PSD file

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
public void LoadPsdChannels() 
	RasterCodecs codecs = new RasterCodecs(); 
	string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Sunflower.psd"); 
	CodecsImageInfo imageInfo = codecs.GetInformation(srcFileName, false); 
	for (int iCount = 0; iCount < imageInfo.Psd.Channels; iCount++) 
		CodecsPsdChannelInfo ChannelInfo = new CodecsPsdChannelInfo(); 
		RasterImage ChannelImage = codecs.LoadPsdChannel(srcFileName, 0, CodecsLoadByteOrder.Rgb, iCount, ChannelInfo); 
		string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Channel_"); 
		destFileName = destFileName + iCount + ".Bmp"; 
		codecs.Save(ChannelImage, destFileName, RasterImageFormat.Bmp, ChannelImage.BitsPerPixel); 
	// Clean up  
static class LEAD_VARS 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 

Target Platforms

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Leadtools.Codecs Assembly