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JanSteevens
Netherlands
17 Posts |
 Posted - Nov 11 2014 : 09:04:47
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| Is there a way to apply .blackvalue (and .whitevalue) to a selection of a bitmap only? |
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xequte
38510 Posts |
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JanSteevens
Netherlands
17 Posts |
Posted - Nov 14 2014 : 03:42:26
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Nigel,
Thank you for a clear answer. Any chance the feature will be implemented sometime?
Jan
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xequte
38510 Posts |
Posted - Dec 04 2014 : 13:13:50
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Hi Jan
We have implemented this for v5.2.1.
Using the new TIEBitmap.AdjustmentsMask it is possible to specify a selection mask for BlackValue, WhiteValue, ChannelOffset, Contrast and layer blending operations.
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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JanSteevens
Netherlands
17 Posts |
Posted - Dec 08 2014 : 02:56:26
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Hi Nigel,
Wonderful! I'm deeply impressed.
Jan Steevens
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JanSteevens
Netherlands
17 Posts |
Posted - Apr 02 2015 : 08:34:06
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Just installed imageEn 6.xx.
The new TIEBitmap.AdjustmentsMask works very well (I'm using it to adjust black&white values), except I can't find a decent way to switch the mask off again and apply changes to the entire bitmap as before. Changing the selection using .select to extend the mask to include the entire bitmap did work in principle but that slowed down the operation too much with the large (> 50 Mb) bitmap I'm using to be practical.
Any hint would be appreciated.
regards,
Jan Steevens
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xequte
38510 Posts |
Posted - Apr 04 2015 : 02:03:10
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Hi Jan
I will improve the documentation.
To reset the mask (so adjustments are applied to the whole image) use AdjustmentsMask := nil;
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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JanSteevens
Netherlands
17 Posts |
Posted - Apr 07 2015 : 10:09:40
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Hi Nigel,
Thank you for the reply.
Maybe I don't understand.
I tried:
...
if BlackWhiteSelectionOnly.checked then
CurrMask := ImageEnViewCurr.SelectionMask
else
CurrMask := nil;
ImageEnViewCurr.IEBitmap.AdjustmentsMask.Assign(CurrMask);
ImageEnViewCurr.IEBitmap.BlackValue:= trackbar_black.position;
ImageEnViewCurr.IEBitmap.WhiteValue:= trackbar_white.position;
ImageEnViewCurr.Update;
...
Which results in the correct behaviour (black/white only applied to the selection) with BlackWhiteSelectionOnly.checked = true but no reaction on changing the trackbar position whatsoever when BlackWhiteSelectionOnly.checked = false.
Stated otherwise:
Switching off BlackWhiteSelectionOnly.checked results in the image remaining unchanged, switching it on makes the trackbars change a selection if present, but never the entire image.
Still puzzled,
Jan
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xequte
38510 Posts |
Posted - Apr 21 2015 : 20:33:24
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To reset the adjustments mask use:
ImageEnView1.IEBitmap.AdjustmentsMask.Empty();
ImageEnView1.Update();
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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JanSteevens
Netherlands
17 Posts |
Posted - Apr 23 2015 : 04:46:47
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Hi Nigel,
Black/white changes are applied to the entire image normally until the AdjustmentMask is assigned.
From then on .IEBitmap.AdjustmentsMask.Empty() does work to switch the mask off, except: the problem remains the same. The ImageEnView treated that way from then on refuses to react on a black/white change, except when a selection is made. Reloading an image does not help, the program must be restarted.
I tried (to start with):
In .. .BlackWhiteSelectionOnlyClick(..)
if BlackWhiteSelectionOnly.Checked then
begin
ImageEnViewCurr.IEBitmap.AdjustmentsMask.Assign(ImageEnViewCurr.SelectionMask);
ImageEnViewCurr.Update;
end
else
begin
ImageEnViewCurr.IEBitmap.AdjustmentsMask.Empty();
ImageEnViewCurr.Update;
end;
It looks as if the masking function, once set, remains active somehow.
Either I must be doing wrong something obvious or there is a flaw in the new function.
Any idea?
Regards,
Jan Steevens
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xequte
38510 Posts |
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JanSteevens
Netherlands
17 Posts |
Posted - Apr 24 2015 : 02:52:46
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Hi Nigel,
Thank you for looking into the problem. Avoids going on trying. Will I get a notification when 6.01 is released or will the update be announced somewhere?
Regards,
Jan Steevens
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xequte
38510 Posts |
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apply .blackvalue and .whitevalue to a selection
