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This lesson demonstrates how to replace non uniform skies. You will find the start images Here. Unzip the file and open the image 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 two choices of images onto Photoshop’s workspace.
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Minimise the red sky image  then activate the windmill.
Now, from the Layers palette, double-left-click the Background layer, and reply OK to the New Layer prompt. Your layer is now named Layer 0.
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From the toolbar, activate the Magic Wand Tool  Lesson.
And left-click over the sky, to surround a segment with a marquee. Continue
left-clicking, until the grey sky is completely isolated with a selection marquee - not including inside the sails.
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From the top menu, choose Select then choose Modify then choose Expand, and enter 1 (Pixel) into the Expand By menu - then click OK.
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From the top menu, choose Select then choose Feather, and enter a Feather Radius of 0.5, then click OK.
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From your keyboard, press the Delete key. This removes the background surrounding the windmill. Press Ctrl then D to remove the marquee.
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Two ways of removing the grey sky from within the wind sails, are (option one) - while the selection marquee remains active - right-click your image, and from the drop-down list, click Similar. As illustrated by my screen capture here. This selects all similar coloured pixels. Now, continue left-clicking (with the Magic Wand), selecting areas that have been missed, as demonstrated by my screen capture here - until every pixel of sky has been selected, as illustrated below.
Alternatively, activate the Background Eraser Tool - Lesson Here!
And in the Background Eraser’s Options bar, click to activate the Sampling: Once tab.
Then set the following attributes.
Now, position the cross-hairs over the grey sky, then left-click (once).
The grey is immediately deleted. 
And the Background swatch is changed to grey. 
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Now, change the Foreground swatch colour to Black, as shown above.
Then enlarge the brush’s size by pressing the right bracket key of the keyboard, (the left bracket key reduces its size). Continue left-clicking to remove the rest of the grey between the sails. Do not drag your cursor, left-click only, and do not click on the black sails.
Pass your cursor over the remaining sails, left-clicking to remove the grey sky between the black wind sails.
 
If you remove areas of the windmill - as demonstrated below.
Click an earlier snapshot in the History palette, to go back a step, or two.
After you have completed this step, your windmill’s background, and the area within its sails, will be transparent.
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Reactivate the red sky image, then from the toolbar, activate the Move Tool.
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Now, activate the windmill image, and double-left-click inside it. Then drag it onto the red sky image.
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Drag the windmill to the bottom of the image, using the Move Tool. Then activate the Crop Tool  - Crop Tool Lesson Here! And crop your image.
 
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To finish, from the top menu, choose Layer then choose Flatten Image, then link here to save your work!
Wendi E M Scarth. Top of Page - Home.
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