• From: Portugal
  • Registered: 2004-02-04
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Topic: PPM support 16bits -> 48 bits ?

Hi ...
Recently I were making some experiences with PPM files (generated from X3F files)
and for my surprise IA did read them nicely ...
But as strange as it seems it reported as being
a 24bits RGB PPM instead of of the 16 bits per channel PPM...

Although the image is visually correct,  but what is happening ?
Is IA interpreting 8bits from each channel ?
is it averaging the data ?
or simply discarding the remaining PPM data ?

Nonetheless this is still the best smile



I know I did ask this before but what about 48bits support ? smile

MarkMarques's Website

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  • From: Denmark
  • Registered: 2003-09-17
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Re: PPM support 16bits -> 48 bits ?

Sorry, but I don't think that IA will ever support 48bpp... As it is now it may read some 48bpp files, but these will just be converted to 24bpp for processing.
I'm not sure what you mean by averaging. Basically 16 bit values will be divided by 256 to fit into 8 bit data structures.

Michael Vinther

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  • From: Portugal
  • Registered: 2004-02-04
  • Posts: 45

Re: PPM support 16bits -> 48 bits ?

Ok ...
Understood the answer ...

Although I have a crash to report :


Application: Analyzer.exe 1.31.1 2010
Invalid floating point operation.

Please describe what you did do before the error occurred:

Opening an image using the "new" color manager ->
using the histogram equalization combo box -> apply...

Closing the image , opening a new one ....

Choosing the color manager option :


Exception address: 004C3D34
Caught by: TColorBalanceForm
Windows version: 5.1 

If I try the "ignore" option the color manager continues but the histogram function is not applied ....


Thanks in advance ...

MarkMarques's Website

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Re: PPM support 16bits -> 48 bits ?

Thanks for repporting. I will fix the bug for the next release.

Michael Vinther

> software developer <

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