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Subject: 
Switching from BITMAP/JPEG to PNG
Newsgroups: 
lugnet.cad, lugnet.inst
Date: 
Mon, 21 Apr 2003 15:59:12 GMT
Viewed: 
2830 times
  
JPEG image format and the new callout capabilites in LPub (plus PLI background
color non-white which I just fixed) are incompatible with JPEG because when you
pack images together that are rendered with the same background color, not all
the backgrounds look *exactly* the same.

I'm going to add PNG support to LPub for building instructions and want to
eliminate JPEG and BITMAP capabilities.  This will simplify things in a *lot*
of places in LPup.  Those of us who authored books for Syngress using LPub used
bitmap format because it was loss-less.  For web publishing, JPEG is typically
used because of reduced file size.

PNG provides lossless compressed images.  Rather than having to support all
three formats bitmap, JPEG and PNG, I only want to support PNG.

Any objections?

Kevin



Message has 6 Replies:
  Re: Switching from BITMAP/JPEG to PNG
 
"Kevin L. Clague" <kevin_clague@yahoo.com> wrote in message news:HDpB2o.oBr@lugnet.com... [ ... snipped ... ] (...) all (...) Nope. I have been converting all of my raw bitmaps to PNG with ImageMagick so this is a welcomed change from my (...) (22 years ago, 21-Apr-03, to lugnet.cad, lugnet.inst)
  Re: Switching from BITMAP/JPEG to PNG
 
"Kevin L. Clague" <kevin_clague@yahoo.com> skrev i meddelandet news:HDpB2o.oBr@lugnet.com... (...) Not from me :-) I'm in the process of throwing JPEG out of BlockCAD (AnkerCAD, ???CAD), as this makes the program almost 250 kB smaller! The PNG (...) (22 years ago, 21-Apr-03, to lugnet.cad, lugnet.inst)
  Re: Switching from BITMAP/JPEG to PNG
 
(...) not at all! PNG will support transparent background - right? that's all I need ;-) w. (22 years ago, 21-Apr-03, to lugnet.cad, lugnet.inst)
  Re: Switching from BITMAP/JPEG to PNG
 
Recalling a bit of history... .PNG was to be the .GIF replacement (due too all the legal stuff around .gif) which is mostly for palletized graphics, in which case PNG is great. The PNG features that are beyond the .gif features do make a very handy (...) (22 years ago, 21-Apr-03, to lugnet.cad, lugnet.inst)
  Re: Switching from BITMAP/JPEG to PNG
 
(...) If PNG is lossless that's fine but I'd prefer that BMP be continued to be supported as one can then convert it in a post process step to whatever one desires. I tend not to like to use JPG for discrete tone images like instructions, it's much (...) (22 years ago, 22-Apr-03, to lugnet.cad, lugnet.inst)
  Re: Switching from BITMAP/JPEG to PNG
 
(...) I don't necessarily object because I can completely see where you are coming from. I will say though that recently in working with PNG in Photoshop, the PNG images took MUCH longer for Photoshop to deal with them. I'm not sure what was going (...) (22 years ago, 28-Apr-03, to lugnet.cad, lugnet.inst)

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