0.64 win-x64: Image size is wrong

Older bugs which are supposed to be fixed in 0.84. *** Please try to reproduce your bug and confirm the bug fix. ***

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tboy
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0.64 win-x64: Image size is wrong

Postby tboy » Sat Apr 19, 2014 7:16 pm

XnViewMP 0.64 on windows 8.1-64 bit
Image size (in centimeters) for thumbnail labels and tooltips is wrong.
For example same file in:
XnView - 16.00 x 21.00 cm
XnViewMP - 15.24 x 20.32 cm
Photoshop - 16.00 x 21.00 cm

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xnview
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Re: 0.64 win-x64: Image size is wrong

Postby xnview » Tue Apr 22, 2014 11:50 am

could you post the file?
Pierre.

tboy
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Re: 0.64 win-x64: Image size is wrong

Postby tboy » Wed Apr 23, 2014 8:45 am

File is here as attachment.
Screenshots are made in Windows7-64bit and results are same as in Windows 8 64-bit.
I'm still using XnView-standard more.
Please make xnViewMP menubar detachable and resizable as any toolbar - this will save a lot of space in menu/toolbar rows for minimalistic idiots like me.

Thank you for the exelent XnView.
Attachments
size test.zip
(809.16 KiB) Downloaded 91 times

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Re: 0.64 win-x64: Image size is wrong

Postby xnview » Wed Apr 23, 2014 10:03 am

See Issue 346 for current status and details.
Pierre.

tboy
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Re: 0.64 win-x64: Image size is wrong

Postby tboy » Sat Apr 26, 2014 10:28 pm

Thank you for the fast response !

Mr. Pierre,
There is a Zoom command called "Real size" (XnView-Standard).
When I click on it Zoom ratio is set to 38% for a 250 dpi picture.
I think this ratio depends on screen resolution (???).
On my monitor actually it has to be 40% - not 38% as it is by default (monitor calibration is standard and never been changed).
Is there a way to set manually a custom ratio for "Real size" command, .INI settings or something ?
If not - is it possible to add this option in "Settings" for further releases?
May be a custom value for screen resolution will be suitable and will correct "Real size" ratio (???).

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Re: 0.64 win-x64: Image size is wrong

Postby tboy » Tue May 06, 2014 1:08 am

?

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Re: 0.64 win-x64: Image size is wrong

Postby xnview » Tue May 06, 2014 1:52 pm

tboy wrote:When I click on it Zoom ratio is set to 38% for a 250 dpi picture.
I think this ratio depends on screen resolution (???).
On my monitor actually it has to be 40% - not 38% as it is by default (monitor calibration is standard and never been changed).

Which value of dpi has your monitor?
Pierre.

tboy
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Re: 0.64 win-x64: Image size is wrong

Postby tboy » Wed May 07, 2014 1:04 am

Registry value HKEY_CURRENT_USER\Control Panel\Desktop - "LogPixels" say:
101 dpi.
This value is automatically chosen by windows 8.1
Monitor is HP L2035 (20,1 inch) 1600x1200 native display resolution.

(This explains the difference 38% -40% in my example If "real size" is based on 96 dpi.)
Is there a way to correct actual DPI settings used in xnView?


Some info: http://technet.microsoft.com/en-us/libr ... 16252.aspx
(see the Important box at the beginning of page)

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Re: 0.64 win-x64: Image size is wrong

Postby xnview » Wed May 07, 2014 9:35 am

tboy wrote:Is there a way to correct actual DPI settings used in xnView?

no, but i'll add a settings
Pierre.

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helmut
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Re: 0.64 win-x64: Image size is wrong

Postby helmut » Thu Mar 02, 2017 8:46 pm

xnview wrote:no, but i'll add a settings
Setting Pixel ratio is available in Tools » Settings | View | View.

This problem is supposed to be fixed in current v0.84. Could you please try and confirm the bug fix, tboy?

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Re: 0.64 win-x64: Image size is wrong

Postby tboy » Fri Mar 03, 2017 6:51 am

Pixel ratio is something different.
If I resize an image in Photoshop for example and make it 20cm wide - then when I zoom it to "Real size" in xnView it has to be 20cm wide on my monitor screen - this depends on DPI settings of screen (I think).

In this topic 3 questions exist:
1. Main post was about wrong image size in labels - it was fixed immediately.
2. Next question was about 'Real size' zoom - now it is OK too (less than 1% difference).
3. Pierre said he will add settings for custom correction of DPI - there is something in INI,but I'm not sure & don't know how to use. (may be because I don't need corections now)

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helmut
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Re: 0.64 win-x64: Image size is wrong

Postby helmut » Fri Mar 03, 2017 3:04 pm

Thank you for your explanation, tboy.

tboy wrote:... 3. Pierre said he will add settings for custom correction of DPI - there is something in INI,but I'm not sure & don't know how to use. (may be because I don't need corections now)
@Pierre: Did you add such a setting? Where can this settings be found?


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