Title:
IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, METHOD, AND PROGRAM
Document Type and Number:
Japanese Patent JP2023077709
Kind Code:
A
Abstract:
To provide an image processing apparatus capable of accurately detecting a line width without requiring a standard line image.SOLUTION: A narrow-line detection device 100 comprises: an image input unit 101 which receives narrow-line image data having narrow lines printed thereon; a narrow-line area segmentation unit 102 which segments a narrow-line area where a narrow line exists on the basis of the received narrow-line image data; a grayscale conversion unit 103 which converts image data of the narrow-line area to a grayscale image; a convolutional arithmetic processing unit 104 which uses a kernel to perform convolutional arithmetic processing on the image data of the narrow-line area after the grayscale conversion; and a narrow-line detection unit 105 which detects the narrow line on the basis of the image data of the narrow-line area after the convolutional arithmetic processing. The kernel is a vertically long kernel.SELECTED DRAWING: Figure 1
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Inventors:
NAKATANI YUKI
Application Number:
JP2021191100A
Publication Date:
June 06, 2023
Filing Date:
November 25, 2021
Export Citation:
Assignee:
CANON KK
International Classes:
G06T7/60; B41J5/00; B41J29/393
Attorney, Agent or Firm:
Betsuyaku Shigehisa