Digital Light & Color

Hi all,

Been a slow 18 months photo-wise, but been getting back in the last few months...

Lately I have been playing with colour management and profiling. When opening a Black & White tiff or jpg file in PWP Pro 5.0.1.6 that was created in another program and going to "File>Print", underneath the checkbox for "Apply inverse monitor curves" there is an option to select a custom printer profile and set rendering intent. However, when creating a B&W tiff in PWP from a canon raw file, this option disappears. Doesn't make any difference if the file was just created, or if PWP/the file/computer is shut down and restarted.

I've re-downloaded and installed. It could be how it's supposed to work, but doesn't seem logical to me...?

Regards,

Simon

(I can be a bit slow)


Just installed PWP Pro 5.0.1.7, and it also shows this

Hi Simon

I suppose the image you create with other programs are in fact not B&W but color images with the avlues for R = G = B.
You see this at the small number at the left top corner of the image window.
A red 24 or 48 indicates a color image and a balck 8 or 16 indicates a B&W image.
Color management can only be applied to color images in PWP, so you if you want to print with CM, you have to convert the B&W image to color with Transformation - Convert, a 8-Bit B&W to 24-Bit Color and a 16-Bit B&W to 48-Bit Color.
You have no losses with this conversaions, lets say a gray-value of a pixel of lets say 127 is simply convertet in a color tripple of RGB 127/127/127.
The only disadvantage is that the image needs more memory space, 3 times as much if it is a uncompressed TIFF.
But you can convert just for printing within PWP to take the advantage of CM.

Dieter,

Ah, thank you, I'll give that a try and restructure my logic a little.

Once again, an awesome product backed up by an awesome forum.

Simon