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Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited.
The Wiki software enables editors to easily revert (undo) a single edit from the history of a page, without simultaneously undoing other changes that have been made since. To do this, view the page history or the diff for the edit, then click on "undo" next to the edit in question. The software will attempt to create an edit page with a version ...
To create single-color areas, the flood fill tool is often the easiest tool. First select an odd color (e.g. pink if there is no pink in the image) and experiment to find the right tolerance setting. Undo each time. Now you pick a main area color (try control-click while flood-fill is activated) and fill by clicking into each contiguous area.
The Photoshop and illusions.hu flavors also produce the same result when the top layer is pure white (the differences between these two are in how one interpolates between these 3 results). These three results coincide with gamma correction of the bottom layer with γ=2 (for top black), unchanged bottom layer (or, what is the same, γ=1; for ...
Control-Y is a common computer command. It is generated by holding Ctrl and pressing the Y key on most computer keyboards.. In most Windows applications this keyboard shortcut functions as Redo, reversing a previous Undo.
[a] The typical way to effect a reversion is to use the "undo" button on the article's history page, but it isn't any less of a reversion if one simply types in the previous text. A single edit may reverse multiple prior edits, in which case the edit constitutes multiple reversions.
Bert Monroy is an American artist best known as an early Photoshop expert. He wrote the first book on the use of Photoshop (The Official Adobe Photoshop Handbook, coauthored with David Biedny), and became an established Photoshop educator. He was a frequent guest on The Screen Savers, where he gave brief Photoshop tutorials. In 2004 he was ...
2. On the diff page, click "undo" at upper right, above the right column of text (Figure 5-3). The Wikipedia software tells you whether it can revert the edit(s). The more consecutive edits you're trying to undo at the same time, assuming none is the current version, the less likely that the software can actually do an undo of the whole group.