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This tutorial demonstrates how to create a graduated black-and-white-to-colour blend. To work along, you can download the image I am working with Here. Unzip the file and open it onto Photoshop’s workspace.
Undo and Navigation Steps
Two ways of undoing steps are from the top menu, Edit then Step Backwards.
Alternatively, click a previous snapshot in the History Palette.
Navigate (zoom in and pan) your image using the Navigator Palette,
or the Zoom Tool. 
Activate The Hand Tool by tapping the Spacebar, keeping the Spacebar pressed, pan your image in the usual way. 
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Open your choice of image onto Photoshop’s workspace.
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Then press your keyboard’s D key, to set the default Black and White Foreground and Background colours. 
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Now, from the top menu, choose Select then choose Select all, and a rectangular selection marquee will surround your image.
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Press Ctrl then C to copy the selected image to Windows Clipboard.
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Then from the top menu, choose Image then choose Mode then choose Greyscale. Click Discard to the Discard Colour Information? dialogue box, (if you see it). Your image will be converted to greyscale, and the selection marquee will remain.
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Now, from the top menu, choose Image then choose Mode then choose RGB Colour.
Your image will not change.
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Press Ctrl then V. You have just pasted the image that was saved to Windows Clipboard, and you are ready for the next step.
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Working on the top (coloured) layer, click the following Add vector mask icon, found at the foot of the Layers palette. This applies a layer mask to the top layer, and is represented by a white rectangle. Ensure the (rectangular) mask remains active - when the layer mask is
active, you will see four black corners surrounding the white rectangle.
Layer mask tutorial for beginners.
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Now, activate the Gradient Tool.
Note
In the Gradient’s Options palette, click Reset Gradients then Append, and double-left-click to set the following Foreground to Transparent gradient. Additionally, ensure the gradient’s orientation is set to Linear Gradient.
Working on the top (coloured) layer, left-click and stretch a gradient line in the direction you wish your black and white to colour fade to be. Remembering to Shift-drag for a straight line.
For example, (working with my gradient settings), if you wish the black to begin at the
left-side of your image, start the gradient line at the right-side of your image, as illustrated below.
Release your mouse button and the Foreground to Transparent gradient will be applied to your photograph, producing a graduated mask effect - as illustrated below.
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After you have experimented with different gradient orientations, flatten the layers and save your work.
Tip
To increase your image’s saturation, (after flattening the layers), press Ctrl then U. In the subsequent Hue/Saturation dialogue box, move the Saturation slider to the right.
Wendi E M Scarth. Top of Page - Home.
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