The JPEG demonstration on this page shows the tradeoff between file size and
image quality for JPEG compression.
These images are scaled to fit on this page. Click on any image to view or download it at full size.
|Image width||1200 pixels||1200 pixels||1200 pixels||1200 pixels||1200 pixels|
|Image height||1400 pixels||1400 pixels||1400 pixels||1400 pixels||1400 pixels|
|File size||5,044,532 bytes||1,128,080 bytes||103,690 bytes||52,437 bytes||37,664 bytes|
on this page
|99 pixels||99 pixels||99 pixels||99 pixels||99 pixels|
on this page
|116 pixels||116 pixels||116 pixels||116 pixels||116 pixels|
Note that even with compression ratios as large as 100 the image quality is quite acceptable for many purposes. Most quality differences can only be seen from the full-size compressed images (for example, look at the rendering of the hair, especially the wisp near the left ear). There are slight color variations that were not caused by the compression.
Compression was performed in
GraphicConverter, version 8.7.1.
Files were saved without metadata. Image quality was set using a
sliding quality scale with default settings for most options.
The image used in this demonstration was cropped from a photograph taken at a live concert of The Spectrum Singers, a few minutes after the photograph below.