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 AutoCrop Issue		  New Topic  Reply to Topic
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jeffp

USA
66 Posts
Posted - Jan 10 2025 :  16:18:51  Show Profile  Reply
I'm using this procedure to do an AutoCrop of an image

FViewer.Proc.AutoCrop(5, clNone, True);

What I can't understand is why it works on the attached "CropSuccess.tif" and NOT on the "CropFile.tif". They are essentially the same file.

Any help here would be welcome.


attach/jeffp/2025110161755_CropSuccess.tif

attach/jeffp/2025110161810_CropFail.tif

Here they are in zip format

attach/jeffp/2025110162020_Crop.zip
98.39 KB

jp

xequte

38730 Posts
Posted - Jan 10 2025 :  19:05:02  Show Profile  Reply
Hi Jeff

It is failing because there are black pixels at 2488,2748. However in the current beta we have added a threshold parameter to avoid isolated pixels like this. You can email me for it.

Nigel
Xequte Software
www.imageen.com
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jeffp

USA
66 Posts
Posted - Jan 11 2025 :  12:34:40  Show Profile  Reply
Yes I would the beta. Where do I email you for it?

jp
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xequte

38730 Posts
Posted - Jan 11 2025 :  15:03:34  Show Profile  Reply
Hi Jeff

I've emailed it to you.

Here are some examples


// Remove the black border from a scanned document
ImageEnView1.IO.Acquire();
ImageEnView1.Proc.AutoCrop(10, CreateRGB(0, 0, 0) );


// Remove the black border from a scanned document, but ignore any isolated pixels
ImageEnView1.IO.Acquire();
ImageEnView1.Proc.AutoCrop(10, CreateRGB(0, 0, 0), True, False, 0.001 );


Nigel
Xequte Software
www.imageen.com
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jeffp

USA
66 Posts
Posted - Jan 11 2025 :  17:44:25  Show Profile  Reply
I installed the beta code, but the CropFail.tif still does not crop down to how CropSuccess.tif does.

What are you getting when you run both files through your code?

I'm using

FViewer.Proc.AutoCrop(10, clNone, True, False, 0.001);



jp

attach/jeffp/2025111174655_CropResults.zip
167.22 KB
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xequte

38730 Posts
Posted - Jan 12 2025 :  19:08:27  Show Profile  Reply
Yes, it works for me. Your code above gives me an image that is 535x923.

Please ensure you are using the beta code, and not your older DCU files.



Nigel
Xequte Software
www.imageen.com
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