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 How do change contrast image?		  New Topic  Reply to Topic
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sungho

Korea
14 Posts
Posted - Mar 22 2013 :  00:53:09  Show Profile  Reply
HI.
Below code is Change contrast value and save image file.

// Screen image is changed.
this->ImageEnView1->IO->IEBitmap->Contrast = 20;
this->ImageEnView1->IO->Update();

// save file image. (save file is not adapt contrast)
this->ImageEnView1->IO->SaveToFile("c:\\test-img\\test2.bmp");

I want saved file chnage contrast image.

Best Regards.
Thanks.

w2m

USA
1990 Posts
Posted - Mar 22 2013 :  06:09:54  Show Profile  Reply
IEBitmap.Contrast specifies a dynamic contrast to apply. It doesn't change the image but only how it is displayed.
Use ImageEnView.Proc.Contrast or ImageEnView.Proc.Contrast2 ImageEnView.Proc.Contrast3 or ImageEnView.Proc.AdjustBrightnessContrast instead.

William Miller
Email: w2m@frontiernet.net
EBook: http://www.imageen.com/ebook/
Apprehend: http://www.frontiernet.net/~w2m/index.html
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sungho

Korea
14 Posts
Posted - Mar 22 2013 :  23:54:52  Show Profile  Reply
Thanks Reply.

I have a another question.
Same image load and


58.1 KBadapt below code.
Result image is not same.

this->ImageEnView2->Proc->Contrast(30);
this->ImageEnView2->Proc->Update();

this->ImageEnView1->IO->IEBitmap->Contrast = 30;
this->ImageEnView1->IO->Update();

I wish change brightness, contrast image file
and save result image file.
Attach image is adapt source code.

Best Regrards
Thannks.
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w2m

USA
1990 Posts
Posted - Mar 23 2013 :  06:03:32  Show Profile  Reply
ImageEnView1->IO->IEBitmap->Contrast = 30 only visually shows the contrast.

ImageEnView2->Proc->Contrast(30) changes the contrast in the actual image.

Why are you using both?


William Miller
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sungho

Korea
14 Posts
Posted - Mar 23 2013 :  06:30:55  Show Profile  Reply
HI.
I used view image and edit contrast/brightness.
After result image file save.

At this point, I would like to know how to apply the value set in the (IEBitmap-> Contrast) value to (proc-contrast).

Best Regards.
Thanks.
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w2m

USA
1990 Posts
Posted - Mar 23 2013 :  10:03:21  Show Profile  Reply
I do not think it is possible... When you save the file you generally use the ImageEnView.Proc in order to apply the contrast to the image for saving.

William Miller
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sungho

Korea
14 Posts
Posted - Mar 23 2013 :  16:08:00  Show Profile  Reply
Hi.
Thanks to fast Reply.
Best Regards.
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