Why is my profile pic 'line-y'?
Why is my profile pic 'line-y'?
Author
Discussion

zcacogp

Original Poster:

11,239 posts

275 months

Sunday 4th November 2007
quotequote all
Chaps,

Quickie.

If you go to my profile, and look at the details of my current car (944 S2), you will see that the picture displayed is "line-y" on screen. The lines of the front of the bonnet are jagged, although they only appear like this when it is shown in this format (as in, when I look at the piccie from my HDD it is fine, and when I look at the piccie on the website it is stored on - photobucket - it is fine as well. Here:

http://i76.photobucket.com/albums/j14/zcacogp/944/... )

Why is this, and what can I do about it?

(This may live better in the "Website feedback" section - please do let me, or a mod, know if this is the case. Thanks.)


Oli.

Gingerbread Man

9,173 posts

244 months

Sunday 4th November 2007
quotequote all
It's because the image is being reduced in size/ squished. If you resize the original image to have a max width of 300 pixels (?) and then upload it, it won't have this squished effect.

David

GetCarter

31,313 posts

310 months

Sunday 4th November 2007
quotequote all
Which is why photos in this forum should never exceed 750 pixels... as the resizing buggers them up.

flat-planedCrank

3,697 posts

234 months

Monday 5th November 2007
quotequote all
zcacogp said:
If you go to my profile, and look at the details of my current car (944 S2), you will see that the picture displayed is "line-y" on screen.
The "line-y" effect is commonly called 'aliasing' (or "jaggies" ). In this case, it's because the image that you have uploaded is not being shown by the forum at its true resolution.
Your image has a true resolution is 480(pixels) x 360 (this can be seen when you click on the image in your profile), however the forum is displaying it at 300 x 225.
If you resized your image to 300 x 225 in a graphics package (like photoshop, etc.) it wouldn't show the same aliasing effect as it would use an anti-aliasing 'resampling' technique when resizing. Web browsers don't use such techniques when they resize images for display, hence the aliasing artefacts.

Can read lots more on aliasing and anti-aliasing on wikipedia if you want winksmile

Edited by flat-planedCrank on Monday 5th November 05:15