Typically before I print any image I will adjust the Output Levels in Photoshop. Via the Levels dialog I'll compress the tonal range of the image by say setting the black output point to be 10, and the white point to be 254. Reason being is that the I know my printer/paper/ink combination will render anything less that 10 to be solid black, and antying above 254 to be pure white. If there is any detail at these extremes the final print will loose it. Although on screen it looks 'wrong' when printed the difference can give you give an improvement.

(This trick came from the Fine Art Printing for Photographers book - that also recommends QImage!)

It would vastly improve my workflow if I could do this via QImage. Although I've seen the levels filter it is not obvious to me that this achieves what I want to do. Anybody suggest if indeed this possible?

Thanks!
Matthew

The levels filter is pretty standard in the way it works, Moving the Highlight and Shadow sliders towards the middle increases contrast and clips those regions.
I think you can do what you want by using a curve. Just move the top end down and the bottom end up. Once each end point is selected, you can enter the numbers directly.
Once done for one image, save the filter, from File/Save ... and you can then apply it to any number of images selected in the queue or as thumbs with a right click, Apply Predefined Filter.
Terry

That's OK, son!
Seven more posts and you will be a HERO member just like me.

  Thanks - that's great. I've opted to go with the typing option; don't think this late on a Thursday I could be that accurate with the mouse!

I was very hopeful that it could be done -QImage does everything else I could ask of it.

Thanks again
Matthew.

If you are asking for this feature, to read the RGB values of each pixel, that's already in Qimage in both the batch screen as well as the Refine RAW image screen.
Not sure exactly what you are looking for.

Thanks a lot Fred. Qimage is full of features - but it's quite difficult to find theme. I think I have to study the whole manual during the Christmas holidays.