> i still get the same error.
Do you have a compiler? Try this sanity check. Create this file, gradient.c:
#include <stdio.h>
#define NumberPixels (200*200)
main()
{
int i;
for (i=0; i < NumberPixels; i++)
{
float pixel = i/(float) NumberPixels;
fwrite(&pixel,sizeof(float),1,stdout);
}
}
Compile like this
cc gradient.c
a.out > rawimage
Now convert:
convert -define quantum:format=floating-point -depth 32 -size 200x200 \
gray:rawimage image.png
If all goes well you will see gradient when you display the image. The
image attributes include:
-> identify -verbose image.png
Image: image.png
Format: PNG (Portable Network Graphics)
Class: PseudoClass
Geometry: 200x200+0+0
Resolution: 72x72
Print size: 2.77778x2.77778
Units: Undefined
Type: Grayscale
Base type: Grayscale
Endianess: Undefined
Colorspace: RGB
Depth: 16-bit
Channel depth:
gray: 16-bit
Channel statistics:
gray:
min: 0 (0)
max: 65533 (0.999969)
mean: 32766.7 (0.499988)
standard deviation: 18918.3 (0.288675)
kurtosis: -1.2
skewness: -1.61271e-08
...
Hopefully this works for you which proves ImageMagick is properly reading
a float raw image.
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