I'm having a book printed. The publisher noticed that almost all of the images in the book were .gif diagrams, containing only black and red color, so she wants to print the book using only two ink colors, black and Pantone 185C. In addition to the .gif's, there were about ten jpeg photographs, but even the photographs were almost all black and red. She had her image person convert the photographs into "duotone" .eps's, so that we could still use only two inks in printing the book. She said that we needed .eps's to make this work.
I don't like how the dutones came out. I'm hoping that someone can look at a .jpg photograph and the .eps that was made from the .jpg and identify what the problem is, and either suggest a better way to make the conversion, or let me know of another alternative.
Here is the .jpg that I gave:
Here is the .eps:
The problem is with the red dots. It seems that the red color washes out the 3-D shading in the red dots. In the .jpg, you can see that the red dot is a conical depression in the domino, but in the .eps, it almost looks like a flat uniform red dot.
In the .eps, if you select the Pantone channel and decrease its "solidity," for example from 50 to 10, you can see more of the 3-D-ness of the dot, but of course there is less of the red, and it still doesn't come close to the pretty conical shading of the red dots in the .jpg.
Also, the .eps red dots have been made too large, and the black surface between two adjacent red dots is getting too thin. Of course, the white dots look fine in the .eps.
Boy, I hope I'm describing this satisfactorily.
Anyone have any ideas for me and my publisher's image guy? It just seems to me that there should be a way to use only two colors, but still get a much more realistic image!
Thanks for any help.