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#1 Posted : Thursday, October 27, 2016 5:54:03 PM(UTC)

Amin  
Amin

Groups: Manager, Tech Support
Posts: 353


The code below takes 2 images as input and fills with green color every pixel in the first image that's identical to the corresponding pixel in the second image.
This C# code works with v19 of LEADTOOLS, as well as numerous other versions.
Code:
//load the 2 images
RasterImage bitmap1 = _codecs.Load("Image1.png");
RasterImage bitmap2 = _codecs.Load("Image2.png");
//pefrom XOR combining to convert similar pixels to black in image2. All non-similar pixels become non-black
LeadRect combineRect = new LeadRect(0, 0, bitmap1.Width, bitmap1.Height);
CombineFastCommand combineCmd = new CombineFastCommand(bitmap2, combineRect, new LeadPoint(0, 0), CombineFastCommandFlags.OperationXor);
combineCmd.Run(bitmap1);
//create a region in image2 with all the black pixels. Those pixels were the similar ones.
bitmap2.AddColorToRegion(RasterColor.Black, RasterRegionCombineMode.Set);
//fill the region with green
FillCommand fillGreen = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Green));
fillGreen.Run(bitmap2);
//perfom copy combining to copy the green pixels to the first image
combineCmd.DestinationImage = bitmap1;
combineCmd.Flags = CombineFastCommandFlags.SourceCopy;
combineCmd.Run(bitmap2);
//Save the result
_codecs.Save(bitmap1, "Result.png", RasterImageFormat.Png, 24);

First image
Image1.png
Second image
Image2.png
Result
Result.png

Edited by user Sunday, May 7, 2017 4:32:34 PM(UTC)  | Reason: Not specified

Amin Dodin

Senior Support Engineer
LEAD Technologies, Inc.
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