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2013-10-27 22:24:23 +00:00 · 2013-10-27 22:24:23 +00:00 · 776bba907c
commit 776bba907c
parent 6f050a029e
3887 changed files with 59894 additions and 7280 deletions
--- a/Task/Bitmap-PPM-conversion-through-a-pipe/Racket/bitmap-ppm-conversion-through-a-pipe.rkt
+++ b/Task/Bitmap-PPM-conversion-through-a-pipe/Racket/bitmap-ppm-conversion-through-a-pipe.rkt
@ -0,0 +1,8 @@
+(define (ppm->jpeg bitmap [jpg-file "output"] [quality 75])
+  (define command (format "convert ppm:- -quality ~a jpg:~a.jpg" quality jpg-file))
+  (match-define (list in out pid err ctrl)  (process command))
+  (bitmap->ppm bitmap out)
+  (close-input-port in)
+  (close-output-port out))
+
+(ppm->jpeg bm)