Prewitt Dialog Box (Image Tool)

Image Processing Toolkit User Guide > Image Tool > Prewitt Dialog Box (Image Tool)

Perform a Prewitt edge enhancement.

Gradients—Computes the row and/or column gradient (horizontal/vertical line enhancement).

Edge—Choose how edge effects are handled. Edge options include:

Copy—Copies the border of the input image to the output image.

Zero—Sets the border of the output image to zero.

Pad—The input image is padded before the filtering operation with the value specified using the Pad Value option.

Reduce—Returns a reduced-size image that is smaller than the input image by the kernel dimensions.

Create New Image—If this option is selected, the processed data is used to create a new image. Enter a suffix for the new image variable name in the text field provided.

Overwrite Image—If this option is selected, the current image is overwritten by the processed data.

Clipping—If set to No, the data type of the result is greater than the original image data type. This prevents overflow values in the resulting image from being clipped. If set to Yes, data values may be clipped.

Zero Negatives—If set, all negative values in the result are set to zero.

Scaling—If set, each gradient is scaled by 3.0; otherwise, no scaling.

Pad Value—This option is active only when the Edge selection is Pad. The value used to pad the image. (Default: 0)

Variable Suffix—If Create New Image is selected, enter a suffix for the new image variable name. This is added to the original variable name.

OK—Perform the edge enhancement and exit the dialog box.

Apply—Perform the edge enhancement, but do not exit the dialog box.

Cancel—Dismiss the dialog box without taking any action.

Help—Display online Help on the dialog box.

Version 2017.0