[argyllcms] Flat shaper

Hi,

As I've made clear with other posts on this list, I've recently
acquired a CMP Digital Target 3 (not the 003). And results
thus far aren't as great as expected.

For example, when I generate a profile using the attached
.ti3 file, images seem very flat/contrast-less.

If I inspect the profile with lprof, the shaper seems nearly
linear. When I profile using my IT8 target, I clearly get a
curve.

The Digital Target 3 has greyscale ramps.

I'm using the following parameters:

# colprof -q h -a S IMG_5286

Can anybody explain to me why I'm getting a nearly linear
shaper?

Regards,
Pascal de Bruijn

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