Even so, the lower overall reflectance value of the peat bog, compared to the other features. Statistical information, mean, max mode etc. Surface profile of band 4 in area near motorway junction. When two images have been georeferenced, they can be laid on top of each other. Blend allows blending the displays into each other, Swipe rolls like a curtain over the top layer, hiding or revealing the bottom layer.
Flicker allows switching between the images.
The display and enhancement of digital images 3.1 Grey scale enhancement One of the most basic enhancement techniques is the contrast stretch. Using stretch will distribute the pixel values according to the algorithm used so that the whole value range is used. The effect of decorrelation stretch is clearly visible in the following images. The effect of this stretch is greater colour differentiation, clearly seen in the histograms, where the pixel values are grouped and distinctively separated from each other. A high-pass is a sharp change in the grey scale value at a particular pixel point, and may be interpreted as features of the built environment, roads or field boundaries.