Patent ID: 11880994
Assignee: ZHEJIANG UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The method for determining plant leaf surface roughness according to claim 1, wherein the combining the n screened images, to obtain a combined grayscale image specifically comprises:
step S41: generating (n−1) homography matrices according to the n screened images by using a least squares estimation method;
step S42: performing perspective transformation on the screened images by using the (n−1) homography matrices, to crop a common region of the screened images;
step S43: performing grayscale transformation on the n screened images with the common region, to obtain n original grayscale images;
step S44: performing filter transformation on the n original grayscale images, to obtain clarity of each pixel point;
step S45: selecting, for each pixel point, an image serial number corresponding to the highest clarity of the pixel point from the n original grayscale images, and mapping the image serial number to be a grayscale value of the pixel point; and
step S46: combining all grayscale values corresponding to the highest clarity of the pixel points, to obtain a combined grayscale image reflecting leaf surface depth information.