Mockup of scanned shaded drawing in different color

[Frog]

How do I do this? Lotsa grays make it tough for me to snag in PS Color Range.

There are so many things I don't know, but amazingly have not needed in the last 27 years.

[mimosatexas]

Easy way might be to colorize and change hue under adjustments hue saturation. Play with lightness and levels etc. You can make a box for the shirt color and use lighting settings as well. Lots of ways to do it honestly. Might try desaturating, adjusting levels a bit first.

[Frog]

Well like I told her, for her seven shirts (here we go again, LOL!) it's way easier to change the color of ink in the screen than to make an accurate mock-up of her grayscale art.

[redwoodtees]

Should be as simple as converting the image to RGB, adding a fill layer with your desired color, and then changing the blend mode on the new layer to screen.

[Dottonedan]

I thnk the vid I made for you a month ago is basically the same thing. What I do many times is depending on if the art is flat and had a colors background. If it's white, simple thing to do is copy, then paste into a new channel. This eliminates the white as being selectable element like you have in RGB. Once pasted, then option click, or shift click, on the channel. (can't remember what one unless I'm sitting in front of the computer). This selects every little pixel in its % then move to RGB layers, fill solid black and use that as your master color layer to work with.  While we are here, you can isolate every pixel on that layer so that it is acting as a mask and you can paint or fill it different colors (on that layer). This is how inkers color an outline. To do so, you check that little box to the left of the layer at top. It's like a lock. It locks everything in that layer so that all you paint on is the individual pixel.

Next, create a new layer and then choose your color needed. If not filling with the check box mask, If just using a selection, Select the black fill later and move to the new one, fill with that color. Then, you can put the solid fill of the shirt under it ( or a tee shirt mock up). Size accordingly.

[Frog]

Here's what I'm facing, though with luck it's a moot point and will just be a learning exercise.

I got a crappy pic of a hand drawn design that includes shading.
The custy, however wanted it in red.

I did a version that was vectorized, traced, and made solid that I think looks great. She may be going with it.
but here's what I initially had (though a higher resolution version may be available)

And also, what I did with it with my limited skills. (as I said, she kinda' likes it)

[Sbrem]

I have another method, I just watched Dan's. What I do here is take the image from RGB to Grayscale, the Bitmap; there, at the full size, I'll set the output to 1200 (much cleaner dots) and the line screen to what ever we might be using; 30 for the "artsy fartsy" effect, 40 and up for general work. In Illustrator, I can place that full size image on a mock up shirt (we use the Beefy Large) and color it any color I want; save that as a jpeg or png for the customer to look at, which will look very clean, better than it does on the actual Illustrator page, and it even has the actual dots you'll be printing... I don't know Corel Draw so I don't know if that does this too, but I imagine it would.

Steve