Hi Folks,
From: "J. J. Young"
>Ron noted:
>>Got a nice big (just over 1 MB) .BMP and zipped it
>>to .ZBM.
>>
>> The zip was reduced to about 85 % of the original .BMP. :(
>>
>> That is obviously not good enough, so what did I miss ?
> G'day Ron. Your big bitmap was a photo, I wager.
Yes, of course. :) <leer>
> Clarence has
> been zipping bitmaps of screenshots of mainly text webpages,
> which have larger regions of single color. If these have their
> color-depth increased so that they may be saved as JPEGs the
> resultant files are larger than ZBM, GIF or PNG and the text
> will look antialiased (fuzzy).
Yes, I follow that.
> Here's a list of results from compressing a small photo:
> Image Compression Tests
> ***********************
> Original: 263,254 bitmap
> Zipped 220,543 = 83.8% of original
That matches what I found, too.
In that case, as a screenshot BMP compressor, it may be the way to
go. As a photo-realistic image, JPG is still the best choice.
That's cool - another option for Arachne. :)
Regards,
Ron
Ron Clarke http://homepages.valylink.net.au/~ausreg/music.html
-- This mail was written by user of Arachne, the Ultimate Internet Client
