jpg compression quality in windows 7 poorer than xp

16cowboy · Mar 22, 2010

I have noticed that Windows 7 seems to create a lower quality jpg then Windows xp used to.

This happens when I click the email button at the top of the photos folder, select a size, example Medium: 1024 x 768, it will create a new email windows with all the emails attached, ok, nice.

But when you view each photo the jpg compression seems to be alot poorer than xp. The file size is small, but the photos appear noticeably grainer & fuzzier etc because of what seems to me to be compression issue.

Is there any way to fix or modify the settings. I use this feature alot to resize a whole collection of images, but now they are low quality.

Anybody else find a fix or edit for this?
Thanks.

EnemyWithin · Mar 23, 2010

I'm not sure if it's windows or the email client that resizes the picture. But if you need a tool to resize a number of pictures you may try FastStone Image Viewer ; a very nice freebie (5 stars on CNET)

FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor. It has a nice array of features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments. Its innovative but intuitive full-screen mode provides quick access to EXIF information, thumbnail browser and major functionalities via hidden toolbars that pop up when your mouse touches the four edges of the screen. Other features include a high quality magnifier and a musical slideshow with 150+ transitional effects, as well as lossless JPEG transitions, drop shadow effects, image annotation, scanner support, histogram and much more. It supports all major graphic formats (BMP, JPEG, JPEG 2000, animated GIF, PNG, PCX, TIFF, WMF, ICO and TGA) and popular digital camera RAW formats (CRW, CR2, NEF, PEF, RAF, MRW, ORF, SRF and DNG).

Details and download here

whs · Mar 23, 2010

.png gives you better quality than .jpg

FliGi7 · Mar 24, 2010

I've posed this issue on here before with no solutions other than "have you tried this other program x?" when it's not a program-specific problem. There is no answer as to why pictures appear to be poorer quality on Win 7 as compared to XP (comparing the exact same two images), particularly in zooming. When I zoom on my images in Win7, it does absolutely no smoothing and provides jagged edges and terrible zoom quality, while XP smooths them.

From my attempts at fixing it, it's not codec issues, it's just Win7's way of rendering images with a different rendering engine as compared to XP and I have no clue how to change it.

Good luck in finding the answer on this one, because I sure haven't.

Apotter · Mar 25, 2010

I have the same problem but it's not a problem I think.. I recently bought a new machine and installed win7 after many years of XP.
Quality of Jpeg compression is times worse than in XP although I summarized that the bad quality is only "fake". I do plenty of jpeg compression daily - 50kb thumbnails for my website and everyone reports that the quality hasnt changed on their side. I viewed the same thumbnails on my previous machine - XP - they all look perfectly fine.
I found out my new graphic card, HD resolution and probably Win7 visualization give an illusion of a worse quality. Have you changed any hardware too ?

FliGi7 · Mar 25, 2010

Nope, no hardware change at all. I dual boot XP and Win7 and have been doing direct comparisons since the early beta stages of Win7, with no fix for the quality even in the RTM Pro version I have.

I am running an Asus P5E mobo with GeForce 8600GTS card and have tried all sorts of different, earlier, beta, and Vista drivers to see if it was graphics card related and it's not. Native resolution on everything looks amazing. It's only when you change it at all from native resolution that things start appearing lesser quality. I have no clue as to why.

Arc · Mar 25, 2010

16cowboy said:
I have noticed that Windows 7 seems to create a lower quality jpg then Windows xp used to.

This happens when I click the email button at the top of the photos folder, select a size, example Medium: 1024 x 768, it will create a new email windows with all the emails attached, ok, nice.

But when you view each photo the jpg compression seems to be alot poorer than xp. The file size is small, but the photos appear noticeably grainer & fuzzier etc because of what seems to me to be compression issue.

Is there any way to fix or modify the settings. I use this feature alot to resize a whole collection of images, but now they are low quality.

Anybody else find a fix or edit for this?
Thanks.

Really ? For the first time I heard it. Know why? I generally use .png format, and the guys Iknow do as well as me

Coz .png gives better quality than .jpg. If the size is a matter , you may compress as .jpg, otherwise shift to .png

546 Inspiron · Mar 28, 2010

It should be as good or better. I would like to know the answer also because I think I noticed it also. I doubt if any video card would change anything because 2-D images aren't affected by cards.

16cowboy · Mar 31, 2010

I am in the same camp as FliGi7..

No hardware changes, not looking for other software recommendations, I already have photoshop, Picassa, etc etc, and dozens more available.

I liked using the email photos method just worked the best & fastest for me, and ts something with the way Windows 7 resizes & compresses compared to XP.

Thanks for your responses, please post more if you find anything.

16cowboy · Apr 28, 2010

Anybody found a update or a solution to this, still very annoying!
XP was better quality after resizing..

Arc · Apr 28, 2010

16cowboy said:
Anybody found a update or a solution to this, still very annoying!
XP was better quality after resizing..

Programs like Adobe Photoshop have an option to save qulity adjustment option, Which windows or MS Paint dont have !
As a free application, you can use IrfanView . That as gives this option.

FliGi7 · Apr 28, 2010

I see what you're getting at, but it has nothing to do with the quality of the actual photo. If it did, XP would display it just as poorly.

mitchell65 · Apr 29, 2010

FliGi7 said:
I see what you're getting at, but it has nothing to do with the quality of the actual photo. If it did, XP would display it just as poorly.

Just so that I get my head round this problem as I have only just got to this thread. Are you saying that if you create a jpeg at a certain size and compression, if you view that in "a program" in Windows 7 then boot into XP in the same machine, use the same program and image file then the XP view looks better quality than the Win 7?

hybridfan · Apr 29, 2010

Hmm very unusual there might be a registry hack deep within Windows to adjust the quality... We'll have to have a look into this matter.

mitchell65 · Apr 29, 2010

hybridfan said:
Hmm very unusual there might be a registry hack deep within Windows to adjust the quality... We'll have to have a look into this matter.

Well I have done a test with half a dozen jpeg all at 12 level of compression and I can't see any difference at all in the quality when in Win 7 or XP. The images were from RAW files, post processed in PS Elements 6 all sized the same and saved to JPEG level 12.

Arc · Apr 29, 2010

mitchell65 said:
Well I have done a test with half a dozen jpeg all at 12 level of compression and I can't see any difference at all in the quality when in Win 7 or XP. The images were from RAW files, post processed in PS Elements 6 all sized the same and saved to JPEG level 12.

It should be the situation, John !
Probably he started with a file that is of poor quality.

NDDL05 · Apr 30, 2010

I've noticed that zooming in Windows 7 Photo Viewer makes images very pixelated and jagged. No problem zooming on the same pics in XP (dual boot machine). Perhaps a related issue?

PooMan UK · Apr 30, 2010

Well I've had a look and I can't see the difference (apart from "outlook" trying to resize/compress images) I've done some test's (see image) and the file size/ compression ratio is the same between xp,vista and Win7 I'm a bit

Posted both jpeg and png just to double check, but I see no difference

FliGi7 · May 10, 2010

mitchell65 said:
FliGi7 said:

I see what you're getting at, but it has nothing to do with the quality of the actual photo. If it did, XP would display it just as poorly.

Click to expand...

Just so that I get my head round this problem as I have only just got to this thread. Are you saying that if you create a jpeg at a certain size and compression, if you view that in "a program" in Windows 7 then boot into XP in the same machine, use the same program and image file then the XP view looks better quality than the Win 7?

Correct. Using the same default windows photo viewer in both XP and Win 7, Win 7 shows a poorer and more pixelated image when zoomed as compared to xp when zoomed at the same level.

FliGi7 · May 10, 2010

Arc said:
mitchell65 said:

Well I have done a test with half a dozen jpeg all at 12 level of compression and I can't see any difference at all in the quality when in Win 7 or XP. The images were from RAW files, post processed in PS Elements 6 all sized the same and saved to JPEG level 12.

Click to expand...

It should be the situation, John !
Probably he started with a file that is of poor quality.

Nope. If the file was poor quality, it would show poorly on both systems, which it does not - only in Win 7 do they appear blocky and pixelated upon zoom.

jpg compression quality in windows 7 poorer than xp

New member

My Computer

New member

My Computer

New member

My Computer

New member

My Computer

New member

My Computer

New member

My Computer

&#1641;&#865;[&#3663;&#815;&#865;&#3663;]&#1782;

My Computer

New member

My Computer

New member

My Computer

New member

My Computer

&#1641;&#865;[&#3663;&#815;&#865;&#3663;]&#1782;

Attachments

My Computer

New member

My Computer

New member

My Computer

New member

My Computer

New member

My Computer

&#1641;&#865;[&#3663;&#815;&#865;&#3663;]&#1782;

My Computer

New member

My Computer

Just call me Nick

Attachments

My Computer

New member

My Computer

New member

My Computer

٩͡[๏̯͡๏]۶

٩͡[๏̯͡๏]۶

٩͡[๏̯͡๏]۶