TS> I'm wondering if anyone is having success resizing graphics in
TS> RoboHelp. We're trying to resize screen captures and find that
TS> they become distorted.
This is a general problem and not especially related to Robohelp:
- Screen captures often contain structures one or two pixels wide.
- If you do conventional resizing the program has to do some kind
of guess which of the zwo colors to use when combining two pixels -
simple resize has no alternative to that.
- You cannot see this problem in photos or other half-tone pictures
because you have much less contrast from one pixel to the next.
I quite successfully used the following work-around:
- Soften the screenshot, perhaps use a higher color resolution
- Resize the softened picture
- Sharpen the resized picture, reduce color count if needed
This delivers surprisingly good results if you do perhaps 20% reduction. The
principle of this conversion is something like this:
- By softening you distribute the information a bit.
- During resize the program does some kind of majority decision
for every single pixel.
- The sharpening works quite well because "synthetic" pictures
like screen shots contain very little "noise".
TECHWR-L List Information
To send a message about technical communication to 2500+ list readers,
E-mail to TECHWR-L -at- LISTSERV -dot- OKSTATE -dot- EDU -dot- Send administrative commands
ALL other questions or problems concerning the list
should go to the listowner, Eric Ray, at ejray -at- ionet -dot- net -dot-
