Often called monochrome but really it's duotone. I expect we all know by now how to make a Sepia version of a B&W picture, and I expect many have dabbled with duotone or split-toning.
This split toning is often used to simulate the quality and colour cast of old photographic paper - platinum, palladium, sepia, selenium and blue.
Instead of using just one colour, as in the Sepia version where you hit "Colorize" in a Hue/Saturation adjustment and go for a sepia colour at an appropriate saturation, the split-tone process on PSE (and PS) just requires the use of the Gradient Map adjustment layer. You can set your two colours up in the foreground/background paint swatches and run a gradient map using "Foreground to Background", or you can make the gradients and save them for future use (though I confess that making and saving a gradient seems a bit fiddly and not user-friendly).
Anyway, with a black and white image prepared (whichever way you like to make a b&w except via "Image > Mode > Greyscale") and given a little contrast boost, you need to choose your two different toning colours . Set foreground colour to set the tone for shadows and set background colour for your highlights - obviously if you set black and white that's exactly what you'd get, but we want something different.
Ok, so what colours work well...... I like all of these so it's not easy to tell you which to use, but.....(set the hex numbers in the colour palette - Foreground is the first number, Background the second number)....
Copper-Blue..... Dusky Blue (#4A616F) Muted Orange (#E6CFAA)
Rich Sepia....... Chocolate (#63441C) Cream (#FFF5D8)
Neutral........... Muted brown (#45392B) White (#FFFFFF)
Blue Tone........ Midnight blue (#2A4468) Muted cyan (#A9C6C6)
Now go to the Layers Palette and make a Gradient Map adjustment layer. You should see a smooth blending gradient of your two selected colours. Click OK. You will see a disappointing looking image that's not what you wanted. Now all you need to do is change the Blend Mode to "Color" and Viola! Alter Opacity as required.
You might find some more hints and colours online, or you could just find a toned picture online, bring it into PSE and use the eye-dropper tool to sample.
This split toning is often used to simulate the quality and colour cast of old photographic paper - platinum, palladium, sepia, selenium and blue.
Instead of using just one colour, as in the Sepia version where you hit "Colorize" in a Hue/Saturation adjustment and go for a sepia colour at an appropriate saturation, the split-tone process on PSE (and PS) just requires the use of the Gradient Map adjustment layer. You can set your two colours up in the foreground/background paint swatches and run a gradient map using "Foreground to Background", or you can make the gradients and save them for future use (though I confess that making and saving a gradient seems a bit fiddly and not user-friendly).
Anyway, with a black and white image prepared (whichever way you like to make a b&w except via "Image > Mode > Greyscale") and given a little contrast boost, you need to choose your two different toning colours . Set foreground colour to set the tone for shadows and set background colour for your highlights - obviously if you set black and white that's exactly what you'd get, but we want something different.
Ok, so what colours work well...... I like all of these so it's not easy to tell you which to use, but.....(set the hex numbers in the colour palette - Foreground is the first number, Background the second number)....
Copper-Blue..... Dusky Blue (#4A616F) Muted Orange (#E6CFAA)
Rich Sepia....... Chocolate (#63441C) Cream (#FFF5D8)
Neutral........... Muted brown (#45392B) White (#FFFFFF)
Blue Tone........ Midnight blue (#2A4468) Muted cyan (#A9C6C6)
Now go to the Layers Palette and make a Gradient Map adjustment layer. You should see a smooth blending gradient of your two selected colours. Click OK. You will see a disappointing looking image that's not what you wanted. Now all you need to do is change the Blend Mode to "Color" and Viola! Alter Opacity as required.
You might find some more hints and colours online, or you could just find a toned picture online, bring it into PSE and use the eye-dropper tool to sample.