2006.06.04 06:46 "RE: [Tiff] Segfault", by Venkatasalapathy D - TLS, Chennai
Thanks for your reply
We need for 48 bit color TIFF read and write sample code.
Note: For 48 bit, every pixel data stored in 6 byte (48 bit). But your data type 'raster' (uint32) is 4 byte.
Please help me and give sample code for 48 bit color read and write.
Thanks & Regards,
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Alex Ryu
Hi, I'm new to image processing and pretty new to C, so please excuse me if I ask any dumb questions.
I keep getting a segmentation fault when I run this code:
fp = fopen("c:\\output.txt", "w");
int i, j;
uint32 w, h, npixels;
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); /*length = height*/
tif = TIFFOpen("c:\\image1.tif", "r");
npixels = w * h;
raster = (uint32*) _TIFFmalloc(npixels * sizeof(uint32));
TIFFReadRGBAImage(tif, w, h, raster, 0);
for (i = 0; i < h; i++)
for (j = 0; j < w; j++)
if ((i*w + j)%h == 0) printf("\n");
fprintf(fp,"%d ", raster[i*w + j]);
For the life of me it looks like I'm overstepping the array bounds, but I've doublechecked it several times. I'm on WinXP. Thanks for your help Alex
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