US 12,475,541 B2
Blemish evaluation method, droplet evaluation method, repellent evaluation method, and repellent evaluation device
Rumi Kawabe, Osaka (JP); Shuuto Yamagata, Osaka (JP); and Ikuo Yamamoto, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Jun. 22, 2022, as Appl. No. 17/846,395.
Application 17/846,395 is a continuation of application No. PCT/JP2020/042993, filed on Nov. 18, 2020.
Claims priority of application No. 2019-234074 (JP), filed on Dec. 25, 2019.
Prior Publication US 2022/0327669 A1, Oct. 13, 2022
Int. Cl. G06T 5/50 (2006.01); G06T 5/70 (2024.01); G06T 5/90 (2024.01); G06T 7/00 (2017.01); G06T 7/70 (2017.01)
CPC G06T 5/70 (2024.01) [G06T 5/50 (2013.01); G06T 5/90 (2024.01); G06T 7/0008 (2013.01); G06T 7/70 (2017.01); G06T 2207/20081 (2013.01); G06T 2207/30148 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An evaluation method for evaluating a spot generated on a substrate that has been treated with a repellent, the method comprising:
an acquiring step of acquiring image data including data on the substrate that has been treated with the repellent to be evaluated;
a spot-detecting step of (1) creating a smoothed image from a grayscale image of the image data, (2) obtaining an image by, for each image pixel in the grayscale image, subtracting a brightness value of the smoothed image from a brightness value of the grayscale image and adding an average of the brightness value of the gray scale image, (3) binarizing the obtained image, and detecting a region of a spot generated on the substrate; and
a spot-evaluating step of determining an evaluation value of the spot according to an area of the region of the spot detected.