lectures / gimp intro / 7

Introduction to the Gimp Go to Page:  0   1   2   3   4   5   6   [7]   8   9

Crop, Scale, Resize, and Zoom

Some of these affect the size of the working window, some don't. Some recalculate the pixels into more or less area, some don't.

Crop

Can be done with the crop tool, this will leave the pixels as they are, and either make the window smaller or larger (or both). Reducing the size of your window here will delete the pixels outside of the window boundary.

Resize

This is essentially the same as crop above, but much more controlled. I found this came in handy when working on the Jacobson's site. There were a series of e-commerce images that all needed to be the same size. I could easily specify exactly what I was looking for with this option.

Scale

This will change the pixels in your image without removing information from any of the sides. It essentially destroys some amount of information.

If you were to double the image size, it would take one pixel's worth of information, and make that into four - two horizontally, and two vertically. These would all be pretty much the same color, as this is not a vector based editor, and has no idea what to do with the surrounding information, though this may try to average together some of the adjacent pixels.

Shrinking the size of the image by one half would take sections of 4 adjacent pixels (2x2) and average together the color values, and create one pixel for it.

This is an example of how you can distort images by changing the "constrain ratio" option.

Zoom

The zoom tool makes absolutely no changes to your image file. This simply changes the way that it is displayed on your screen. Much like using a magnifying class it will enlarge or decrease the size of the pixels on your screen.