Adobe® Photoshop® CS4 & NVIDIA® GPUs

Tranfroms image into jigsaw puzzle

Hacking Selection Mask - Part 4

You have two choices of rotation.
First, choose Select➜Transform Selection and then move the pointer outside the bounding box.
Another option, which you may have more control of it. After choosing Transform Selection, insert the cursor in the Set Rotation text field on the options bar and then just use the Up/Down Arrow keys to adjust the rotate angle.

Inversing Selections. To select unselected areas or if you want to deselect everything, choose Select➜Inverse or press Ctrl+Shift+I (Windows), Cmd+Shift+I (Mac OS). To revert/apply again, just press repeatedly .

Growing Selections and Adding Similar Colors. After you have made selections, you can use Grow/Similar command to expand the selections. Photoshop uses the tolerance set for the Magic Wand tool to determine which pixels to add to the selection. Having used the Magic Wand tool to select a range of colors, you can add to the range by holding down Shift and clicking another sample area. However, sometimes that can yield unexpected results.

Loading Selections from Open Documents. To load a selection from another open document, you may either drag and drop between source and target document windows or save the selection as an alpha channel from the Channels palette and then choose Select➜Load Selection. In the Load Selection dialog box, choose the source document and the alpha channel from the pop-up menus. This method has the added advantage of giving you the option of adding, subtracting, or intersecting the incoming selection with any active selection in the target document.

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Hacking Selection Mask - Part 3

Knowing how to repositioning precisely an active selection mask by selecting a lasso tool or marquee. Just place the tool pointer in the selection, and then move and drag the selection to a new position. If you know the coordinates of where you want to reposition it, choose Select➜Transform Selection, or select the command from the contextual menu and then enter the coordinates in the options bar to positioning it precisely. Alternately, you can also use the arrow keys to nudge the selection, regardless of whether it’s being transformed.

To have any modification on your selections, just go to menu Select➜Modify; then, from the submenu, choose Border, Smooth, Expand or Contract that allows you to enter any value in pixels in the pop-up dialog box.

Adding, Subtracting and Intersecting Selections. You can add to, subtract from, or intersect with a selection while creating it or after the event.To do so, press Shift to add;Alt (Windows),Opt (Mac OS) to subtract; Alt+Shift (Windows), Opt+Shift(Mac OS) to intersect. You can also specify an option for the selection tool in the options bar before you use it by clicking one of the buttons. The options are, from left to right, New Selection, Add to Selection, Subtract from Selection and Intersect with Selection.

Hacking Selection Mask - Part 2

To move the content selection. To move a selection marquee and the enclosed content, select the Move tool and then click and drag or use the arrow keys. You can also access the Move tool temporarily by holding down Ctrl (Windows), Cmd (Mac OS), except when the active tools are Path selection, the Hand, Pen, shape, or slice tools.

Duplicating and moving with Selection Content. To move a selection marquee and duplicate the content at the same time,select the Move tool, hold down Alt(Windows), Opt (Mac OS), and then drag or use arrow keys. Alternatively, hold down Ctrl+Alt (Windows), Opt (Mac OS) and then drag.

Hiding the Marching Ants. You may need to hide marching ants (marquee boarder) by pressing "H" key in order to have a cleaner preview . Pressing "H" once more to reveal the marching ants border. Optional way for Whatever hidden or unhidden by the keyboard shortcut can be specified in View➜Show➜Show Extras Options.

Hacking Selection Mask - Part 1

Toggle freehand and straight lines drawing. When using Lasso tool to draw a freehand selection, in the middle of drawing, you can press and hold Alt (Windows), Opt (Mac OS) to switch to straight lines drawing mode, then clicking once to drag a straight line. To revert it back to freehand, hold the mouse-click and release when you have completed the selection drawn.

Switching Polygonal Lasso Tool Modes. When you use the Polygonal Lasso tool to draw straight lines, press Alt (Windows), Opt (Mac OS) and holding mouse click to draw freehand. To revert to straight lines, just release mouse holded to single click.

Changing Sample Size for Magnetic Lasso Tool. When using Magnetic Lasso tool, controlling the size for object drawing, large width for smooth areas and a small width for complicated areas. Quick way to change the width of the sample area by using the left/right square bracket keys.

Moving Selections. Holding down Spacebar and drag allows you to move the marquee selection which you have drawn.

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Using Quickmask