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WO-2026094456-A1 - IMAGING DEVICE, METHOD FOR CONTROLLING SAME, PROGRAM, AND STORAGE MEDIUM

WO2026094456A1WO 2026094456 A1WO2026094456 A1WO 2026094456A1WO-2026094456-A1

Abstract

The present disclosure provides an imaging device capable of improving user convenience while having the function of knowing the history of an image. This imaging device comprises: an imaging unit that images a subject and performs image processing for generating an image file including image data; a detection unit that detects alteration of the image file; and a control unit that controls the imaging unit and the detection unit such that when treatment processing is performed on the image file temporarily recorded in a recording unit and reproduced, the detection unit performs processing for detecting alteration of the reproduced image file, and when treatment processing is performed on the image data in the middle of the image processing, the detection unit does not perform processing for detecting alteration of the image data.

Inventors

  • UENO, DAIYU

Assignees

  • キヤノン株式会社

Dates

Publication Date
20260507
Application Date
20250916
Priority Date
20241029

Claims (15)

  1. A shooting means that performs a shooting process to capture an image of a subject and generate an image file containing image data, A detection means for detecting tampering with image files, When processing is performed on an image file that has been recorded and played back by the recording means, the detection means performs a process to detect tampering with the played-back image file, and when processing is performed on the image data during the shooting process, the control means controls the shooting means and the detection means so that the detection means does not perform a process to detect tampering with the image data. An imaging device characterized by comprising:
  2. The imaging apparatus according to claim 1, characterized in that, if the control means performs processing on the image data during the imaging process, it performs the processing on the image data before writing the image data to the recording means.
  3. The imaging apparatus according to claim 1, characterized in that, if tampering is detected by the detection means, the control means does not add the history of the image file to the image file.
  4. The imaging apparatus according to claim 1, characterized in that, when the control means applies processing to the image data during the imaging process, it records the history of the image data before the processing and the history of the image data after the processing in the image file.
  5. The imaging apparatus according to claim 1, characterized in that the processing is an image processing that alters the subject.
  6. The imaging apparatus according to claim 5, characterized in that the processing treatment is either a skin beautifying treatment or a facial slimming treatment.
  7. The imaging apparatus according to claim 1, characterized in that the processing is an image processing that changes the impression of the image.
  8. The imaging apparatus according to claim 7, characterized in that the processing is an image processing method that includes one of the following: toy camera style, diorama style, oil painting style, watercolor style, fisheye style, monochrome style, soft focus style, or glitter effect.
  9. The imaging apparatus according to claim 1, characterized in that the processing is a synthesis process that combines multiple images.
  10. The imaging apparatus according to claim 9, characterized in that, when the control means performs the synthesis process on a plurality of image data captured before being recorded in the recording means during the imaging process, it controls the imaging means and the detection means so as not to perform the process of detecting tampering with the plurality of image data.
  11. The imaging apparatus according to claim 9, characterized in that, when the control means performs a synthesis process between the image data captured before being recorded in the recording means and the image data in the reconstructed image file during the imaging process, the detection means controls the imaging means and the detection means to perform a process to detect tampering with the image data in the reconstructed image file.
  12. The imaging apparatus according to claim 9, characterized in that the synthesis process includes one of the following image processing methods: HDR processing, depth of field processing, or multiple exposure processing.
  13. The shooting process involves capturing an image of the subject and generating an image file containing image data, A detection process for detecting tampering with image files, When processing is performed on an image file that has been recorded and played back by the recording means, the detection step performs a process to detect tampering with the played-back image file, and when processing is performed on the image data during the shooting process, the control step controls the shooting process and the detection step so that the detection step does not perform a process to detect tampering with the image data. A control method for an imaging device, characterized by having the following features.
  14. A program for causing a computer to execute each step of the control method for the imaging apparatus described in claim 13.
  15. A computer-readable storage medium storing a program for causing a computer to execute each step of the control method for the imaging device described in claim 13.

Description

Imaging device and its control method, program, and storage medium This disclosure relates to an imaging device having an image tampering prevention function. In recent years, information sharing via the internet has become increasingly active, allowing anyone to publish and disseminate various types of information to a large, unspecified audience. Furthermore, various forms of image manipulation have become possible. In this context, information may originate from unreliable sources, or published information may be illegally altered. Patent Document 1 discloses a technology to prevent such unauthorized tampering by generating a hash value and attaching it to the image when the image is captured in tamper-proof mode, thereby preventing image tampering. Furthermore, Non-Patent Document 1 proposes adding metadata indicating the editing content performed on an image to the image file in order to authenticate the source, history, and origin of the image. The attached drawings are included in the specification and constitute part thereof, illustrating embodiments of the disclosure and are used together with the description to illustrate the principles of the disclosure. A diagram showing the external appearance of a digital camera, which is one embodiment of the imaging device of the present invention. A diagram showing the external appearance of a digital camera, which is one embodiment of the imaging device of the present invention. A block diagram showing the configuration of a digital camera. A flowchart illustrating the main processing steps involved in the shooting operation of a digital camera. A flowchart showing the steps for image processing settings. A flowchart showing the steps for image processing settings. A flowchart illustrating the procedure for processing still images. A diagram showing an example of the structure of an image file. A diagram showing an example of the structure of an image file. A diagram showing an example of the structure of an image file. A diagram showing an example of the structure of an image file. A flowchart illustrating the procedure for generating the history. A flowchart illustrating the procedure for adding historical information. A flowchart illustrating the steps involved in image editing. The embodiments will be described in detail below with reference to the attached drawings. Note that the following embodiments do not limit the scope of the claims. While several features are described in the embodiments, not all of these features are necessary, and the features may be combined in any way. Furthermore, in the attached drawings, identical or similar configurations are given the same reference numerals, and redundant descriptions are omitted. <Appearance of the Digital Camera 100> Figures 1A and 1B show the external appearance of a digital camera 100, which is one embodiment of the imaging device of the present invention. Figure 1A is a front perspective view of the digital camera 100, and Figure 1B is a rear perspective view of the digital camera 100. In Figures 1A and 1B, the display unit 28 is a display unit located on the back of the digital camera 100, and displays images and various information. The touch panel 70a can detect touch operations on the display surface (touch operation surface) of the display unit 28. The viewfinder-external display unit 43 is a display unit located on the top surface of the digital camera 100, and displays various settings of the digital camera 100, including shutter speed and aperture value. The shutter button 61 is an operating member for issuing a shooting command. The mode selector switch 60 is an operating member for switching between various modes. The terminal cover 40 is a cover that protects the connector (not shown) for connecting the digital camera 100 to an external device, such as a connecting cable. The main electronic dial 71 is a rotary control element, and by rotating it, settings such as shutter speed and aperture value can be changed. The power switch 72 is an operating element that switches the power of the digital camera 100 ON and OFF. The sub-electronic dial 73 is a rotary control element, and by rotating it, the selection frame (cursor) can be moved and images can be advanced. The four-way key 74 is configured so that the up, down, left, and right sections can each be pressed, and processing can be performed according to the pressed section of the four-way key 74. The SET button 75 is a push button and is mainly used for confirming selection items. The video button 76 is used to instruct the start and stop of video recording. The AE lock button 77 is a push button, and by pressing the AE lock button 77 in the shooting standby state, the exposure state can be fixed. The zoom button 78 is an operation button for switching the zoom mode ON and OFF in the live view display (LV display) in shooting mode. By turning the zoom mode ON and then operating the main electronic dial 71, the live view image (LV image)