2005.10.13 11:12 "[Tiff] Resend: Black image", by Katrina Maramba

2005.10.17 21:44 "Re: [Tiff] Resend: Black image", by Al Eridani

On 10/13/05, katrina maramba <ka3na_423@yahoo.com> wrote:

Anyway, I have images from the camera Olympus C2500L that have these properties:

Image Width = 1712
Image Height = 1368
StripByteCount = 523872

Notice that its strip byte count is extremely large.

I don't think this strip byte count is large at all. With the image dimensions you have

quoted, it indicates a density of about 4.4 pixels per byte. As you give no indication of

the number of colors of the image, compression used, etc. it is hard to make a guess.

Anyway, when I run this image through my parser that calls the API TIFFReadRGBAStrip(), it SOMETIMES outputs an all-black image. There's nothing in it, its all black. Note that I indicated "sometimes". This is not reproducible all the time.

When a program gives different results for different runs, it is almost always due to

variables that are used before being initialized, so they contain just whatever their

corresponding memory positions contained when they were allocated. Make sure that you correctly initialize any variables (both scalars and arrays) before using