manual file types

From: Paul Koning <pkoning_at_equallogic.com>
Date: Tue Feb 1 12:27:20 2005

>>>>> "Fritz" == Fritz Chwolka <fritz_chwolka_at_t-online.de> writes:

 Fritz> On Tue, 1 Feb 2005 10:30:17 -0500, Paul Koning wrote:

>> Oh yes, never never never use JPEG for compressing text or line
>> art scans. For one thing, it butchers the image, and besides, the
>> compression isn't very effective. A scan with the page background
>> cleaned up to mostly-white will produce a SMALLER file if
>> compressed by lossless compression in TIFF, PNG, or GIF, than it
>> does when compressed with the lossy JPEG. (The "P" in JPEG stands
>> for "photography" -- and indeed JPEG is ONLY fit for photographs
>> and similar continuous-tone images, and not for any other kind.)
>>
>> paul
>>


 Fritz> Badly my favorite software ABBY finereader 6 uses JPEG for
 Fritz> compressing. I don't know what finerader 7 makes. Finerader
 Fritz> 5 makes uses gif compressing format. So what shall I do?

Throw it out and replace it by a program that doesn't make wrong
assumptions like that.

            paul
Received on Tue Feb 01 2005 - 12:27:20 GMT