Clive R. Haynes FRPS

By choosing the 'Colorize' route, we can tone either colour or monochrome (black & white) images.
For 'Colorizing' we need to work in RGB so if it's a colour file already, no problem. However if you wish to tone a monochrome image, you will need to either scan as RGB or change the mode from Grayscale to RGB. (Do this via Image > Mode > RGB Color).

Either all or part of the image may be Colorized (toned) in this way. To Colorize part of the image use either a selection to define the area or for the more advanced, go via the Adjustment Layer route.

It's often preferable to create copy of the original image onto a new layer as this will preserve the original (as a 'background') should you so wish and allow subtle blending between the two layers by layer masking or blending modes. But you don't have to.

There are two possible routes to Colorize an image.
One is via, Image > Adjust > Hue/Saturation
The other is by creating an 'Adjustment Layer
The more flexible option is via an 'Adjustment Layer' (for more information about 'Adjustment Layers' go to 'Delving Deeper into Layers')
whichever route is selected the Hue & Saturation dialogue box opens
Should you choose the 'Adjustment Layer' option, then click on the Adjustment Layer icon.......... at the bottom of the Layers Palette and from the drop-down Adjustment Layer menu choose 'Hue & Saturation'
In the Hue & Saturation box, click on 'Colorize' and adjust the Hue & saturation sliders for the tone you require.
In the example above, Hue around 43 and Saturation around 22 gives a sepia-like tone.
It's unlikely that you'll need to adjust the 'Lightness' slider so leave it alone

If you create an Adjustment Layer, it will sit above the Background (or whatever lower layer(s) you have) and be available for further adjustment by double-clicking on the half black/white layer thumbnail rectangle.
Should you wish to erase or partially erase a section of the tone, first ensure that the Hue/Sat adjustment layer is 'active', then with black as the foreground colour and using a suitable brush, 'paint' on the image and the tone will be stripped away. To restore, swap the foreground colour to white.

Should you wish to reduce the overall intensity of the Colorize layer over the (perhaps colour) original beneath, reduce the layer opacity for this layer.

If you prefer to use the non-adjustment layer route and you would like to be able to erase sections of the toned area, then make a copy of the original layer, tone this by the Image > Adjust > Hue & Saturation > Colorize route, then add a 'Layer Mask'. You will have the ability to erase and restore areas but less easy control over further Hue & Saturation/Colorize adjustments.
Above: Original Image
Above: The 'Colorized' Sepia version
Toning Topics
Toning with 'variations'
Toning with 'Curves'
Gradient Map Toning
Know-How Contents
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