diff options
| -rw-r--r-- | sys/src/cmd/jpg/writeppm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/src/cmd/jpg/writeppm.c b/sys/src/cmd/jpg/writeppm.c index bc18ecee8..9c96f538e 100644 --- a/sys/src/cmd/jpg/writeppm.c +++ b/sys/src/cmd/jpg/writeppm.c @@ -90,6 +90,8 @@ writedata(Biobuf *fd, Image *image, Memimage *memimage, int rflag) pix = (data[i]>>depth*((xmask-x)&xmask))&pmask; if(((x+1)&xmask) == 0) i++; + if(chan == GREY1) + pix = pix == 1? 0: 1; if(rflag){ if(chan == GREY1) Bputbit(fd, pix); |