The K Desktop Environment

3.4. The Edit Menu: Advanced Editing

Edit->Crop

This command "crops" the picture, cutting away all but the region you select. Using your mouse, you select a region in the Image window. Moving to the Viewer/Editor window, select Edit->Crop, and the Image window crops down to the chosen size. The resulting cropped image can then be saved using Save As...

Edit->Scale...

This command allows you to shrink or grow the image to a precise size. When Scale... is chosen, an Image Size dialog opens allowing you to specify the exact size of the image in pixels:

Image Size Dialog

The Image Size Dialog.

The resulting image is not cropped, but rather shrunk, to the size that you choose. If you want to scale the image proportionately without distortion, then you must calculate the pixel ratio to be entered, and ensure that it matches the current ratio used by the image.

To calculate this manually, note the size displayed in the Image Size dialog, divide the width by the height, and use this ratio as a divisor when entering the new dimensions.

For example, in the Image Size dialog above: width / height = 800 / 600. To maintain proportion when shrinking an image to a width of 500 pixels, one would divide 500 by (800/600) to get 375, hence the new pixel ratio would be 500 by 375.

For a simpler way to scale images proportionally, see below for 10% Larger and 10% smaller.

You can also manually scale an image by simply dragging the lower right corner window of the Image window to the size you require, then saving the result.

Edit->10% Larger

This command proportionally scales the image 10% larger. Similar to the Scale command, this is a simpler way of scaling up the image in 10% increments.

Note

There is also a Scale 10% Larger button on the toolbar of the Viewer/Editor window.

Edit->10% Smaller

This command proportionally scales the image 10% smaller. Similar to the Scale command, this is a simpler way of scaling down the image in 10% increments.

Note

There is also a Scale 10% Smaller button on the toolbar of the Viewer/Editor window.

Edit->Double Size (>)

This command proportionally scales the image 100% larger. Similar to the Scale command, this is a simpler way of scaling the image in 100% increments.

Edit->Half Size (<)

This command proportionally scales the image 50% smaller. Similar to the Scale command, this is a simpler way of scaling down the image in 50% increments.

Edit->Horizontal Flip

This command "flips" the image by 180 degrees, producing a mirror-image horizontal to the original.

Note

There is also a Horizontal Flip button on the toolbar of the Viewer/Editor window.

Edit->Vertical Flip

This command "flips" the image by 180 degrees, producing a mirror-image vertical to the original.

Note

There is also a Vertical Flip button on the toolbar of the Viewer/Editor window.

Edit->Rotate 45 degrees

This command rotates the image clockwise by 45 degrees.

Edit->Invert

This command inverts all colors in the image, producing a result simlar to a color film negative.