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CN-121999079-A - Image processing apparatus, control method, computer program product, and storage medium

CN121999079ACN 121999079 ACN121999079 ACN 121999079ACN-121999079-A

Abstract

The invention provides an image processing apparatus, a control method, a computer program product, and a storage medium. The image processing apparatus determines parameters for correction processing of extended image data generated by an image extension function based on feature information of each of an original image region and an extended region before extension included in the extended image data, which is extended, and corrects the extended image data using the determined parameters.

Inventors

  • Gu Guhao puts down

Assignees

  • 佳能株式会社

Dates

Publication Date
20260508
Application Date
20251105
Priority Date
20241106

Claims (15)

  1. 1. An image processing apparatus comprising: A determination section for determining parameters for correction processing of expanded image data generated by an image expansion function based on feature information of each of an original image area before expansion and an area of an expanded area included in the expanded image data, in which the image data is expanded, and Correction means for correcting the extended image data using the determined parameter.
  2. 2. The image processing apparatus according to claim 1, further comprising: a generation section for generating region specification information for specifying an original image region and an extension region before extension included in the extension image data generated by the image extension function, Wherein the determining section determines parameters for correction processing of the extended image data based on the feature information of the original image area and the extended area specified by the area specification information.
  3. 3. The image processing apparatus according to claim 2, further comprising: and a storage section for storing the extended image data and the area specification information.
  4. 4. The image processing apparatus according to claim 2, Wherein the region specification information is mask data corresponding to each of the original image region and the extension region.
  5. 5. The image processing apparatus according to claim 2, Wherein the region specification information is position information of a boundary between the original image region and the extension region.
  6. 6. The image processing apparatus according to claim 1, Wherein the determining means determines the parameter based on a feature quantity generated from the original image region excluding the extension region.
  7. 7. The image processing apparatus according to claim 1, Wherein the determining means determines the parameter based on feature information in which feature information generated from the extended area and the original image area and feature information generated from the original image area excluding the extended area are synthesized.
  8. 8. The image processing apparatus according to claim 2, Wherein the determining section synthesizes the feature information generated from the respective areas specified by the area specification information by applying weights of the respective areas.
  9. 9. The image processing apparatus according to claim 8, The weight of each region is determined according to the expansion mode of the image expansion function on each region.
  10. 10. The image processing apparatus according to claim 9, The expansion modes of the areas comprise automatic expansion without the assignment of the user to the shot object, expansion with the assignment of the user to the shot object and unexpanded.
  11. 11. The image processing apparatus according to claim 1, further comprising: and providing means for providing the image expansion function.
  12. 12. The image processing apparatus according to claim 11, further comprising: and a camera for taking an image.
  13. 13. A computer-readable storage medium storing a program that, when loaded and executed on a computer, causes the computer to perform a process, wherein the process comprises: Determining parameters for correction processing of expanded image data generated by an image expansion function based on feature information of each of an original image area before expansion and an area of an expanded area included in the expanded image data, in which the image data is expanded, generated by the image expansion function, and The extended image data is corrected using the determined parameters.
  14. 14. A computer program product comprising a computer program which, when loaded and executed on a computer, causes the computer to perform a process, wherein the process comprises: Determining parameters for correction processing of expanded image data generated by an image expansion function based on feature information of each of an original image area before expansion and an area of an expanded area included in the expanded image data, in which the image data is expanded, generated by the image expansion function, and The extended image data is corrected using the determined parameters.
  15. 15. A control method of an image processing apparatus, the control method comprising: Determining parameters for correction processing of expanded image data generated by an image expansion function based on feature information of each of an original image area before expansion and an area of an expanded area included in the expanded image data, in which the image data is expanded, generated by the image expansion function, and The extended image data is corrected using the determined parameters.

Description

Image processing apparatus, control method, computer program product, and storage medium Technical Field The technology of the present disclosure relates to an image processing apparatus, a control method, a computer program product, and a medium, and particularly relates to image processing of an extended image. Background In recent years, with the development of the generation type AI technology, image data can be expanded. This enables generation of an area that does not exist in the original image and creation of an image having a wider field of view, and enables generation of an object that does not exist in the original image in a specific area of the image. A case will be considered where this technique is applied to an image requiring post-processing such as a RAW image. In this case, the extension region may have different characteristics from the original region, and as a result, the region having the different characteristics may be included in one extension image. In such an image, there is a possibility that the difference in hue and brightness between the original region and the extension region is visualized by post-processing due to the difference in characteristics between these regions, thereby causing an unnatural image. Known techniques related to white balance as one of the post-processing of images include, for example, techniques described in japanese patent laid-open No. 2012-039256 and japanese patent laid-open No. 2004-064676. Japanese patent application laid-open No. 2012-039256 discloses a configuration in which, when an image is cut out at a set aspect ratio at the time of image recording, an evaluation value for white balance control is calculated by changing a use ratio between the entire image to be cut out and a common area of the image to be used regardless of the aspect ratio. In japanese patent laid-open No. 2012-039256, when a main subject is included in a non-common region that is used or not used according to the setting of the aspect ratio, the use ratio of the common region is increased to calculate the color level for white balance control. In japanese patent laid-open No. 2004-064676, a configuration is disclosed in which, when a specific area is cut out and stored as an electronic zoom area at the time of image recording, color extraction for white balance is also performed from outside of the area to be cut out. In japanese patent application laid-open No. 2004-064676, when a light source different from a light source illuminating an object exists outside an electronic zoom region, white balance control is performed by reducing the weight of a color extracted from the outside. Japanese patent application laid-open No. 2012-039256 suppresses the change in the luminance and color balance of a main subject such as a face of a person due to the change in the setting of the aspect ratio, and controls the difference in white balance between images having different aspect ratios that have been set. Japanese patent laid-open No. 2004-064676 assumes that a specific angle of view is cut out and stored, and its purpose is to make appropriate the color balance and brightness of an image to be cut out by effectively utilizing information of an external area to be cut out. Therefore, for example, when a light source different from the light source illuminating the subject exists outside the electronic zoom region, the weight of the color extracted from the outside is reduced, but if the light source exists inside the electronic zoom region, the weight is not changed. Even if such a known technique is applied to image data expanded by AI generation or the like, the effects described in the respective patent documents are applied only to expanded image data. Therefore, it is difficult to improve image quality such as an unnatural image after post-processing or the like due to a characteristic difference between an original area and an extended area. Disclosure of Invention The technology of the present disclosure makes it possible to perform image processing in which an extended region is considered while reducing the influence of the extended region on an original region in an extended image. According to an aspect of the present disclosure, there is provided an image processing apparatus including a determining section for determining parameters for correction processing of extended image data generated by an image extension function, in which image data is extended, based on feature information of each of regions including an original image region before extension and an extension region included in the extended image data, in which the extended image data is extended, and a correcting section for correcting the extended image data using the determined parameters. According to another aspect of the present disclosure, there is provided a computer-readable storage medium storing a program which, when loaded and executed on a computer, causes the computer to perform a process,