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| Title: | DECWINDOWS 26-JAN-89 to 29-NOV-90 |
| Notice: | See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit |
| Moderator: | STAR::VATNE |
|
| Created: | Mon Oct 30 1989 |
| Last Modified: | Mon Dec 31 1990 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 3726 |
| Total number of notes: | 19516 |
3253.0. "SCREEN capture not really doing DDIF grayscale?" by IOOSRV::COLVIN () Fri Aug 24 1990 00:43
I am trying to use the capture portion of the screen to convert an annotated
image originally taken with VAXcamera and then annotated with DECwrite 1.1
into a single DDIF or Sixel frame. When I use the capture portion with
the DDIF and Grayscale settings I get a DDIF file that has the
IDU_PIXEL_STRIDE set to 1 and the IDU_BITS_PER_PIXEL set to 1.
The original VAXcamera DDIF file has the IDU_PIXEL_STRIDE set to 8
and the IDU_BITS_PER_PIXEL set to 7.
The DDIF file looks as through it has been changed to bit tonal -
which seems to be supported by the IDU_BITS_PER_PIXEL of 1. Shouldn't
this be greater than 1 in order to be a grayscale capture?
This image capture DDIF is planned to be used to simply the need to
display the image with annotation without having to have the display
application wade through the various DDIF frame that are needed by
DECwrite in order to provide the editable version of the image.
I am also trying to use the PSPRINT software to convert the postscript
output file from DECwrite to sixel. The problem with this approach is
that the output targets for DECPRINT is printers (which is reasonable)
and not vt340s or DECterm which is really what I need.
Steve Colvin
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