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Need help converting PSD layers to individual images.
Posted: 2007-03-01T22:05:10-07:00
by NoMonkey
I'm not quite sure what I'm doing wrong here. I'm trying to load a PSD and save each of it's layers as individual images. If I attempt to output PSDs for each layer all I get is black but if I output in any other format, I sometimes get something that resembles the layer, but has diagonal stripes of colors all over.
Here is the code I am using:
Code: Select all
int main( int argc, char ** argv)
{
Magick::InitializeMagick(*argv);
std::string filePath = "C:\\test.psd";
std::string fileName = filePath;
RemoveFileNamePath( fileName );
RemoveFileNameExtension( fileName );
ImageInfo* image_info = CloneImageInfo((ImageInfo *) NULL);
strncpy_s(image_info->filename, filePath.c_str(), MaxTextExtent - 1);
ExceptionInfo exception;
GetExceptionInfo(&exception);
printf( "Processing File: %s\n\n", filePath.c_str() );
Image* image = ReadImage( image_info, &exception );
// Loop through all the layers
for ( ; image != (Image *)NULL; image = GetNextImageInList(image) )
{
// Get layer name
const char* szLayerName = GetImageProperty( image, "label" );
if( !szLayerName || szLayerName[0] != '.' )
continue;
std::string outFileName( fileName );
outFileName += szLayerName;
std::string outFilePath( "C:\\" );
outFilePath += outFileName;
outFilePath += ".tif";
std::transform( outFilePath.begin(), outFilePath.end(), outFilePath.begin(), tolower );
strncpy_s( image->filename, outFilePath.c_str(), MaxTextExtent - 1 );
strncpy_s( image_info->filename, outFilePath.c_str(), MaxTextExtent - 1 );
printf( "\tSaving layer %s as file %s... ", szLayerName, outFilePath.c_str() );
// Write out layer.
WriteImage( image_info, image );
printf( "Complete\n" );
}
/* Clean up */
DestroyImageInfo( image_info );
(void)DestroyExceptionInfo( &exception );
DestroyMagick();
printf( "\nProcessing Complete.\n\n" );
system("PAUSE");
return 0;
}
All this does is search for any layers that begin with a period and attempt to save that layer out as <file name>.<layer name>.<extension>.
Any help would be appreciated!
Re: Need help converting PSD layers to individual images.
Posted: 2007-03-02T06:10:44-07:00
by magick
We suspect ImageMagick cannot properly read some of your PSD layers. We tried to get the PSD image specification from Adobe (about a year ago) to improve support within ImageMagick but they never got back to us.
Re: Need help converting PSD layers to individual images.
Posted: 2007-03-02T07:28:54-07:00
by NoMonkey
Well that's a bummer! I guess I'll check around a bit and see if I can find another solution.
Thanks!
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-14T23:22:01-07:00
by tgraupmann
I'm doing the same thing to get the PSD layer names but it just returns null. Has there been any progress on this?
GetImageProperty( image, "label" )
I'm using ImageMagick-6.7.8.
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-14T23:59:20-07:00
by snibgo
You might try a more recent version of IM. This works from the command line, v6.8.6-9:
Code: Select all
identify -format "%[label]\n" testLayers.psd
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T11:35:52-07:00
by fmw42
snibgo wrote:You might try a more recent version of IM. This works from the command line, v6.8.6-9:
Code: Select all
identify -format "%[label]\n" testLayers.psd
Odd! %[label] is not listed in the list of string formats at
http://www.imagemagick.org/script/escape.php
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T12:08:23-07:00
by snibgo
True, so perhaps the documentation could be updated. It does mention %l, which also works. Both %l and %[label] have worked (on a sample PSD file I have) since IM v6.5.8-8, which is the oldest version I have.
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T13:57:27-07:00
by tgraupmann
No luck upgraded to 6.8.6 and the label still returns null.
while ((image=RemoveFirstImageFromList(&images)) != (Image *) NULL)
{
const char* label = GetImageProperty(image,"label"); // WHY NULL?????????
resize_image=ResizeImage(image,dstWidth,dstHeight,LanczosFilter,1.0,exception);
if (resize_image == (Image *) NULL)
MagickError(exception->severity,exception->reason,exception->description);
(void) AppendImageToList(&thumbnails,resize_image);
DestroyImage(image);
++index;
}
I'll link my reference image:
http://tagenigma.com/imagemagick/layertest.psd
The layers should be:
Background
Layer 2
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T14:03:26-07:00
by tgraupmann
There we go. Somehow resizing the image lost the layer name. If I skipped the resize, I can get the name just fine.
Thanks!
while ((image=RemoveFirstImageFromList(&images)) != (Image *) NULL)
{
if (layer < 0 ||
layer >= count ||
index == layer)
{
const char* label = GetImageProperty(image,"label");
if (label)
{
printf("Label: %s\r\n", label);
}
else
{
printf("Label: None\r\n");
}
(void) AppendImageToList(&thumbnails,image);
}
++index;
}
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T14:13:05-07:00
by tgraupmann
It's possible that the first layer is the composite layer which doesn't have a name. The other layers have names, I may have overlooked that.
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T14:48:35-07:00
by snibgo
Correct. "identify" says your file has three layers. The first has no label.
Re: Need help converting PSD layers to individual images.
Posted: 2013-09-15T15:53:30-07:00
by tgraupmann
Thanks for a bump in the right direction. Everything I aimed to do is working like a charm.
http://www.youtube.com/watch?v=LLKByhchOFc