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Windows 7: desktop backgrounds and quality degradation


23 Aug 2009   #1

Win 7
 
 
desktop backgrounds and quality degradation

Ok so I've been doing some serious skinning lately building everything in photoshp and then slicing up for various app skins etc.. to my dismay!! I have noticed a degradation when desktop backgrounds are applied, it appears that images are converted and turned into a low quality jpegs, a noticeable increase in noise and artifacting occurs.
Im not sure if this is a new thing or if its always been an issue in windows I guess my intense scrutiny of every pixel has driven me mad!!!







the images are resized so you need to click on them to notice.

Is there any way around this?

My System SpecsSystem Spec
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23 Aug 2009   #2

64-bit Windows 8.1 Pro
 
 

Listen to an Antism ..

Patient: Doc, it hurts when I do this..
Doctor: Then don't do it ...
My System SpecsSystem Spec
23 Aug 2009   #3

Win 7
 
 

A what? Don't get it
My System SpecsSystem Spec
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23 Aug 2009   #4

 



It is likely that the issue stems from the image itself. I am not aware of any similar reports. My guess is that your using an undersized image.

BTW - I went to the doctor for a checkup. I'm getting older now and I have to stay on top of things. Anyway, the doctor told me that I was a bit overweight and should exercize more. I told him that I would need a second opinion. He said, "OK, your ugly too."
My System SpecsSystem Spec
23 Aug 2009   #5

Windows 7 Ultimate Vista Ultimate x64
 
 

I have seen the same results when I tried to set a png as a desktop background, save your images as a jpeg and they will look fine.
My System SpecsSystem Spec
23 Aug 2009   #6

Win 7
 
 

Thanks Grim

ok I can confirm in the crazy world of Microsoft that indeed if you try to apply a lossless image file such as png or bmp the image is converted into a low quality jpeg...

If you apply a lossy jpeg windows doesn't try to transcode and you will get the output you want...

makes total sense if you think about it

I searched google for Antism.. and nothing came up I get it now though
My System SpecsSystem Spec
23 Aug 2009   #7

64-bit Windows 8.1 Pro
 
 

Antisms' are quaint quips that are used by Seven Fourms Antman...
My System SpecsSystem Spec
23 Aug 2009   #8

 

I've got friends in low places...


Attached Thumbnails
desktop backgrounds and quality degradation-capture.png  
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23 Aug 2009   #9

64-bit Windows 8.1 Pro
 
 

Quote   Quote: Originally Posted by Antman View Post
I've got friends in low places...
I wonder who made those?
My System SpecsSystem Spec
24 Aug 2009   #10

Win7 64bit Ultimate
 
 

I see some wrong information in this post and I feel compelled to mention this.

I created a dual monitor wallpaper for my system in photoshop. The image was saved in png format the only format I use anymore. I have zero problems. It looks as sharp on the desktop as it does in photoshop.

There are a lot of deciding factors in how an image will appear on the desktop once applied. The resolution of the image should be the exact resolution as the desktop just as a start. Your display settings and graphics hardware make a big difference also. A crappy video card or no video card will usually result in a poor appearance most noticeable when looking at images with gradients in them.

If you play with settings you will see what I mean.
My System SpecsSystem Spec
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 desktop backgrounds and quality degradation




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