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How to get image real number of bits per pixel
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How to get image real number of bits per pixel


  • Subject: How to get image real number of bits per pixel
  • From: "Sebastien TOPIN" <email@hidden>
  • Date: Tue, 25 Feb 2003 17:21:26 +0100

Hi Folks,

I am trying to get the real number of bits per pixel for a displayed image.
A NSImageView object enables me to drag n' drop a bmp image from the Finder
and display it in my app.
Then I got an NSBitmapImageRep from the NSImageView and did that:

int iBitsPerPix = [bittmapImageRep bitsPerPixel];

The result is always 32 even for grayscale 8 bits per pixel images or 24 bits
per pixel color images.

How can I get the image real number of bits per pixel of those images?

Thanks in advance,
Seb
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  • Follow-Ups:
    • Re: How to get image real number of bits per pixel
      • From: Jeff Disher <email@hidden>
    • Re: How to get image real number of bits per pixel
      • From: Marco Binder <email@hidden>
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