Originated from
QueryCAT

Why is it that when I save an image in JPEG format ...

Why is it that when I save an image in JPEG format, the quality of the image looks better as opposed to when I save the image as a GIF (the image looks grainy)?


Answer this question

Topics:

, , ,
  • # Posted 6 months ago
  • 326 views
Share Send to a friend Watch Report
 
 

Posted Answers

Order by
 
jeanpaul
9 answers
2 thumbs up

Gif uses less colors 256 and jpeg 16 million. So a lot less detail can be shown with color. Also gif uses dithering to trick your eyes.

Look at this site Me Tarzan You Jane free contact site to see JPG thumbnails. All the photos are scaled down a lot but still overal look good.

The flags in the upper corner are gifs.

 
Posted 6 months ago ( permalink )
In reply to moosic's question
Rated as
#1 out of 4
0
0
  Report Abuse  

Helpful?

line
line
line



 

GIF format is a lossless compression technique and it supports only 256 colors.

GIF is better than JPEG for images with only a few distinct colors, such as line drawings, black and white images and small text that is only a few pixels high.

JPEG images support 16 million colors and are best suited for photographs and complex graphics.

JPG does not work well on line drawings, lettering or simple graphics because there is not a lot of the image that can be thrown out in the lossy process, so the image loses clarity and sharpness.

here's more info:http://www.siriusweb.com/tutorials/gifvsjpg/ 
Posted 6 months ago ( permalink )
In reply to moosic's question
louisliem was invited by Yedda to answer this question.

Rated as
#2 out of 4
0
0
  Report Abuse  

Helpful?

line
line
line



 
eehud
5 answers
1 thumb up

The compression alegorithem of is better and deals with millions of colors as the gif alegoritm deals with 256 colors and is suitable to simple photos.
Posted 6 months ago ( permalink )
In reply to moosic's question
eehud was invited by Yedda to answer this question.

Rated as
#3 out of 4
0
0
  Report Abuse  

Helpful?

line
line
line



 

Thanks to those who answered. I understand now. I also found out that saving the image in PNG format keeps the quality up a bit and also supports transparent backgrounds (like GIF images but better quality). Anyway, the answers are much appreciated

Smile
Posted 5 months ago ( permalink )
Rated as
#4 out of 4
0
0
  Report Abuse  

Helpful?

line
line
line



Sign in to participate

Got an answer for moosic? Would you like to comment on the posted answers, or vote for the one which you think is the best?

Sign up for a free account, or sign in (if you're already a member).

Explore Related Questions

Other people asked questions on similar topics, check out the answers they received:


How can i save animation layer to jpeg format....

how can i save animation layer to jpeg format....
Submitted by megartz 7 months ago
  • 1 answer
  • viewed 483 times

Last answer posted 7 months ago by yes


Should I convert all to TIFF or only as needed

should I convert all my photos into TIFF on the computer. Or just the ones that I might be working on, printing etc.
Submitted by Ronnie 1 month ago
  • 1 answer
  • viewed 37 times

Last answer posted 1 month ago by MackTheKnife


Resizing PDF thumbnail & also view its content from the thumbnail

I want the PDF file have a thumbnail which you can resize the thumbnail and also view its content. Example a folder contains 10 ...
Submitted by Buds 4 months ago
  • 1 answer
  • viewed 219 times

Last answer posted 3 months ago by kiwiguy



» More...

Explore Related Posts in Forums

Cleaner, Sharper GIF, JPEG, And PNG Images

This is a dedicated thread for discussing the SitePoint article 'Cleaner, Sharper GIF, JPEG . These artefacts occur when an image that is too complex is saved as a paletted...