NetImager Help

Help Contents

Image Manipulation

Resize Image

Rotate Image

Add Crop selection

Cut

Copy

Paste

Resizing Images

Units: Pixels or percentage

Width and Height: Enter dimensions in pixels or percentages depending on the Unit selection above.

Constrain Proportions: This maintains the ratio of width to height that the original image size had, to prevent an image from looking distorted in proportion after being resized.

Interpolation Type: This is a technical term for how the actual resizing is done mathematically. The default is usually fine.

Radio Box for entire image or selected layer: Select whether the entire image (all layers) should be resized or just the selected layer. The default option is the entire image. Note: The selected layer option will result in the canvas size remaining unchanged.

Resizing images by click dragging method:

Click and drag a resize handle (see below). Once resized, if you want the canvas to fit to the new image / layer size, click the Fit Canvas Button.

Rotating an Image

Angle: Enter the angle to rotate the image by, in degrees.

Left / Right radio box: Select whether to rotate the image left or right.

Entire Image / Selected Layer radio box: Select whether to rotate the entire image or just the selected layer. Note: If you rotate the selected layer, the canvas will not rotate, so it may not fit the image properly. Click the Fit Canvas Button to make the canvas fit the current layers if this occurs.

Adding a crop selection

Cropping an image allows you to take a snapshot of a selection of an image, and deleting everything around that selection, leaving you with the snapshot area.

To perform a crop:

Click to add a new crop selection.

A red resizable square will appear on the canvas - resize it using the handles on on the edges of it and move the crop selection over the desired area of the image which you want to crop (or take a snaphot of)

Click to perform the cropping of the area, or click the crop tool again to cancel the crop.

Cut, Copy, Paste

Cut and Copy allow you to cut or copy a selection or layer. Layers can be selected by clicking them. Selections can be made by using the selection tools:

Manual selection of an area defined by drawing lines until they join to form an enclosed area.
Selection of an area by colour
Selection of an area by drawing a selection rectangle over an area of the image.

A copied or cut selection or layer can then be pasted as a new layer by clicking paste.