A stain evaluation method, a number evaluation method, a release evaluation method, and a release evaluation apparatus

摘要

Quantitatively evaluate the performance of the formulation. The unevenness evaluation method is an evaluation method for evaluating unevenness generated on a substrate treated with a water repellent agent, an acquisition step of acquiring image data including a substrate treated with a water repellency to be evaluated, and generating a smoothed image from the image data; Together, the process includes a non-uniformity detection step of binarizing the smoothed image to detect a non-uniformity region generated on the substrate, and a non-uniformity evaluation step of obtaining an evaluation value of the non-uniformity according to the area of the detected non-uniformity region.