18350931. STORAGE MEDIUM, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD simplified abstract (CANON KABUSHIKI KAISHA)
Contents
STORAGE MEDIUM, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
Organization Name
Inventor(s)
AKITOSHI Yamada of Kanagawa (JP)
SHINICHI Miyazaki of Kanagawa (JP)
STORAGE MEDIUM, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD - A simplified explanation of the abstract
This abstract first appeared for US patent application 18350931 titled 'STORAGE MEDIUM, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
Simplified Explanation
The present disclosure relates to an image processing apparatus and method for quantizing pixel values in an input image. The objective is to maintain density in an area, even when the quantization target is a high-frequency pattern, such as a hatching pattern, with a halftone value to be subjected to an error diffusion process.
- The invention is a program that enables a computer to function as an image processing apparatus for quantizing pixel values in an input image.
- The program includes an adding unit that adds at least part of the difference between an accumulated pixel value and an applied error value for a pixel of interest to a quantization error value obtained by the quantization process.
- The program also includes an error distributing unit that diffuses the added error obtained by the adding unit to peripheral pixels around the pixel of interest.
Potential applications of this technology:
- Image processing and editing software
- Printing and reproduction technology
- Digital photography and image compression algorithms
Problems solved by this technology:
- Maintains density in high-frequency patterns during the quantization process
- Reduces artifacts and distortion caused by the error diffusion process
- Preserves details and fine textures in images
Benefits of this technology:
- Improved image quality and accuracy in quantization
- Enhanced preservation of fine details and textures
- Reduction of visual artifacts and distortion in high-frequency patterns
Original Abstract Submitted
An object of the present disclosure is to maintain density as an area as compared to a conventional technology even in a case where the quantization target is an image of a high-frequency pattern, such as a hatching pattern, with a halftone value to be subjected to an error diffusion process. An embodiment of the present invention is a program for causing a computer to function as an image processing apparatus for quantizing a pixel value of each pixel in an input image, the computer being caused to function as: an adding unit configured to add at least part of a difference between an accumulated pixel value and an applied error value for a pixel of interest to a quantization error value obtained by the quantization; and an error distributing unit configured to diffuse an added error obtained by the adding unit to peripheral pixels around the pixel of interest.
