×

Image processing method and image processing device

  • US 20010028737A1
  • Filed: 02/07/2001
  • Published: 10/11/2001
  • Est. Priority Date: 02/09/2000
  • Status: Active Grant
First Claim
Patent Images

1. An image processing method comprising the steps of:

  • decoding an image by decomposing the image into multiple color components;

    drawing a histogram by calculating the density value frequencies of the image data on the respective color components which have been obtained as a result of decoding;

    calculating a high-density-side peak value and a low-density-side peak value from said histogram for judging their hierarchical relationship with regard to each of the respective color components;

    counting the number of colors selected from among said multiple color components whose high-density-side peak values are higher than their low-density-side peak values; and

    determining an image which is to become a binarization object based on the number of color components counted.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×