Set similar options
Similarity sets the level of difference images and you select the sample.
The similarityis an integral parameter. Its value must be chosen by experimentation. The program accepts rotated images on 90 and 270 degrees as equal. The comparison result is independent of the image brightness, saturation, the original image size. The comparison result is weakly dependent on the quality of the image. Black and white copies of color photographs give a difference of 1-2 percent. We recommend starting with the value of the parameter 98 percent. Window is shown in the figure below.