Changeset 17660 for trunk/psLib/test/fits/tap_psFitsImage.c

Timestamp:

May 13, 2008, 3:27:25 PM (18 years ago)

Author:

Paul Price

Message:

Some fixes to image I/O: (1) when BITPIX=8, the FITS standard says unsigned ints (cf two's complement for BITPIX=16,32,64). Added some special cases for quantising to BITPIX=8 to accomodate this. (2) Adding support for marking bad pixels when doing compression. Out-of-range and non-finite pixels are written with value 2^{(BITPIX-1)-1, which is recovered (to NAN) when reading (through use of (Z)BLANK keyword). Added test for this. It doesn't pass yet --- the highest pixel in the image is being interpreted as NAN when it shouldn't be. Solution probably involves tweaking scaleRange() in psFitsScale.c, but not worrying about that now.}

Location:

trunk/psLib/test/fits

Files:

• . (modified) (1 prop)
• tap_psFitsImage.c (added)

trunk/psLib/test/fits

@@ -13 +13 @@
 gmon.out
 tap_psFits
+tap_psFitsImage

@@ -13 +13 @@
 gmon.out
 tap_psFits
+tap_psFitsImage

@@ -13 +13 @@
 gmon.out
 tap_psFits
+tap_psFitsImage