Legacy ImageMagick Discussions Archive

I'm not sure what is going wrong. So the command that builds foo1 works, and the command that builds foo2 works, and the command that builds foo3 doesn't. "works" in the sense that I get the results I expect. So this is an extracted test, I'm actually trying to number pages, but for testing, I am using a file of page numbers, and overlaying page 1 and page 2 (in the real code, I use a file of data, and a file of page numbers).

The file of page numbers, for reference, is at http://nevcal.com/temporary/allnumbers.tif. The Batch file above is also at http://nevcal.com/temporary/foo.bat, if that is helpful.

So I start with a white page, and overlay one page number. That works (foo1). I start with a white page, and overlay a different page number, with a slightly variant command. That works (foo2). When I put them together, the second page number doesn't show up. I don't if it is an effect of positioning, if multiply isn't working two times in a row, or if I'm stacking layers badly.

Remove the flatten. In unix it would be


convert xc:white -resize 5250x3886! \
\( allnumbers.tif[0] -gravity center -background white -extent 2375x3885 +repage -repage 5250x3886+0+0 \) \
-compose multiply \
\( allnumbers.tif[1] -gravity center -background white -extent 2375x3885 +repage -repage 5250x3886+0+0 \) \
-compose multiply -compress group4 foo3.tif

Hmm. Not quite. Removing the flattens produces a 3 page TIFF file. I want the content merged. I just tried removing the first flatten, but that didn't change the results... only the first page number shows up, instead of both of them.

try this


convert \( xc:white -resize 5250x3886! \) \
\( -clone 0 \( allnumbers.tif[0] -gravity center -background white -extent 2375x3885 +repage -repage 5250x3886+0+0 \) \
-compose multiply -flatten \) \
\( -clone 0 \( allnumbers.tif[1] -gravity center -background white -extent 2375x3885 +repage -repage 5250x3886+0+0 \) \
-compose multiply -flatten \) \
-delete 0 -compress group4 foo3.tif

in windows

convert ( xc:white -resize 5250x3886! ) ^
( -clone 0 ( allnumbers.tif[0] -gravity center -background white -extent 2375x3885 +repage -repage 5250x3886+0+0 ) ^
-compose multiply -flatten ) ^
( -clone 0 ( allnumbers.tif[1] -gravity center -background white -extent 2375x3885 +repage -repage 5250x3886+0+0 ) ^
-compose multiply -flatten ) ^
-delete 0 -compress group4 foo3.tif

That was better, it produced the numbers where I wanted them, but had 2 pages in the result file, one with each number. An extra

-compose multiply -flatten

cured that.

The weird this is, I tried the original case again, and it now works, without having made changes... maybe it is something to do with my data files, I did change them around some. Anyway, the test case should have done the same thing, and didn't, but this modification does. Thanks for your help.