This dialogue box is used to determine a threshold gray value for pixel operations “Threshold” and “Binary”. The gray value histogram of the processed image is shown in the upper part of the window.
Slide bar - Used to select the gray value. When holding on and moving the slide bar with mouse, the gray value shown in the edit box varies with the position of the slide bar arrow. The histogram is used as a reference for determining the gray value threshold.
“+” button - Pressed to keep the gray values higher than the gray value threshold, when conducting pixel operation “Threshold”.
“-” button - Pressed to keep the gray values lower than the gray value threshold, when conducting pixel operation “Threshold”.
OK button - Pressed to execute the function.
Cancel button - Pressed to cancel the function
Edpiv pE 2013 — help