RasterImageViewer shows up distorted image when uploaded

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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Wednesday, May 29, 2013 7:03:58 AM(UTC)

dost

Groups: Registered
Posts: 4

Hi,

I have a jpeg image when uploaded shows up a distorted blurry image. I guess something is wrong with the scaling factor, but not sure exactly.

When i try the same image in you sample demo program VBMainDemo_x64_2010, it seems to work fine.

Please find the attached file for the code and image file that I am using.

Could you please let me know what am i missing and what exactly needs to be done. Any suggestion would be greatly appreciated.

Thanks
Divya

File Attachment(s):

LeadRasterImageViewer.zip (3,950kb) downloaded 42 time(s).


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#2 Posted : Thursday, May 30, 2013 6:18:48 AM(UTC)

Daoud

Groups: Registered
Posts: 256

Try adding the following code:
=================
Dim pp As Leadtools.Drawing.RasterPaintProperties = viewer.PaintProperties
pp.PaintDisplayMode = pp.PaintDisplayMode Or Drawing.RasterPaintDisplayModeFlags.Resample
viewer.PaintProperties = pp
=================
This will fix the issue. Please note that paint properties will take effect if there is zooming on the image (this also include fitting the image to the viewer).

#3 Posted : Saturday, June 1, 2013 6:39:33 AM(UTC)

rad1

Groups: Registered
Posts: 23

Hi,

Can I use the same code for WPF application?
I can't find this property. Is there any other alternative?

Thanks for help.

#4 Posted : Sunday, June 2, 2013 6:22:35 AM(UTC)

Maen Hasan

Groups: Registered, Tech Support
Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

Using "BitmapScalingMode" flags will produce a close results. Using the following line of code will produce a close image paint:
==============
RenderOptions.SetBitmapScalingMode(Viewer, BitmapScalingMode.HighQuality);
==============

Thanks,
Maen Badwan
LEADTOOLS Technical Support

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