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graph_man

328 Posts
Posted - Apr 10 2017 :  17:30:52  Show Profile  Reply
How to select only areas where all pixels are inside selected area?

See example video:
https://www.dropbox.com/s/lxevkx41bsfahep/selection-example.mp4?dl=0

xequte

38610 Posts
Posted - Apr 10 2017 :  19:41:49  Show Profile  Reply
Hi

That would be cool, but there is no feature for that.

You could probably do it by:
- Copying the selection into a bitmap
- Ensuring the bitmap is monochrome
- Filling any parts of the bitmap that touch the sides
- Copying the bitmap to the selection mask:

https://www.imageen.com/help/TImageEnView.SelectionMask.html

Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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graph_man

328 Posts
Posted - Apr 10 2017 :  20:26:24  Show Profile  Reply
Thank you.
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graph_man

328 Posts
Posted - Apr 19 2017 :  19:29:52  Show Profile  Reply
- Copying the selection into a bitmap
- Ensuring the bitmap is monochrome
- Filling any parts of the bitmap that touch the sides

All is OK

- Copying the bitmap to the selection mask:

I don't see result after:
ImageEnView1->DeSelect();
SelectionBitmap1->CopyToTIEMask(ImageEnView1->SelectionMask);
ImageEnView1->SelectCustom();
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xequte

38610 Posts
Posted - Apr 20 2017 :  02:12:48  Show Profile  Reply
How about if you use:

ImageEnView1.SelectionMask.Assign( SelectionBitmap1 );
ImageEnView1.SelectCustom();


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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graph_man

328 Posts
Posted - Apr 20 2017 :  06:24:24  Show Profile  Reply
In this case corrected selection stretched to the whole image.
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xequte

38610 Posts
Posted - Apr 21 2017 :  15:48:27  Show Profile  Reply
Hi

The selection mask should be the same size as the whole image anyway...

Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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graph_man

328 Posts
Posted - Apr 21 2017 :  15:49:21  Show Profile  Reply
Why I cannot use

SelectionBitmap1->CopyToTIEMask(ImageEnView1->SelectionMask);

???
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graph_man

328 Posts
Posted - Apr 21 2017 :  15:58:16  Show Profile  Reply
My bitmap is smaller than the whole image.

I use

ImageEnView1->CopySelectionToIEBitmap(SelectionBitmap1);
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xequte

38610 Posts
Posted - Apr 23 2017 :  15:57:00  Show Profile  Reply
Hi

I'm out of the office this week, so I cannot look at the code to confirm the difference. Perhaps your SelectionBitmap1 is not ie1g pixel format.

At any rate, CopyToTIEMask fills the entire mask, so it won't allow you to copy just a portion of the image. To do that use an intermediary TIEBitmap copy the portion to the whole "Selection Bitmap" and then assign the "selection bitmap" to the SelectionMask.



Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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graph_man

328 Posts
Posted - Apr 23 2017 :  16:41:03  Show Profile  Reply
thanks
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