Image display apparatus and method, and program

• US 8,086,063 B2
• Filed: 05/05/2008
• Issued: 12/27/2011
• Est. Priority Date: 07/17/2007
• Status: Active Grant

• Current Assignee: 138 East LCD Advancements Limited (Vector Capital Corporation)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Aiso, Seiji
• Primary Examiner(s): CHEN, WENPENG
• Application Number:
  US12/115,405
• Publication Number:
  US 20090046942A1
• Time in Patent Office: 1,331 Days
• Field of Search: 382/261, 382/199, 348/345, 348/222.1
• US Class Current: 382/261
• CPC Class Codes: G06T 2207/20052 Discrete cosine transform [DCT]
• CPC Class Codes: G06T 2207/20192 Edge enhancement; Edge preservation
• CPC Class Codes: G06T 2207/30168 Image quality inspection
• CPC Class Codes: G06T 7/0002 Inspection of images, e.g. flaw detection
• CPC Class Codes: G06T 7/13 Edge detection
• CPC Class Codes: G06T 7/40 Analysis of texture depth or shape recovery from texture G06T7/529
• CPC Class Codes: H04N 23/63 by using electronic viewfinders
• CPC Class Codes: H04N 23/67 Focus control based on electronic image sensor signals
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 5/142 Edging; Contouring
• CPC Class Codes: H04N 9/74 for obtaining special effects H04N9/65 - H04N9/73 take precedence

Abstract

An image display apparatus, that displays a digital image on a screen for check use, includes: an image data storage unit that stores image data of the digital image; an edge detection unit that detects an edge included in the digital image through analysis of the image data; and an image display unit that displays, when the edge being a detection result has a width wider than a predetermined first threshold width, the digital image in a state that the width of the edge is visible on the check screen.

Claims

1. An image display apparatus that displays a digital image on a screen for check use, comprising:

an image data storage unit that stores image data of the digital image;

an edge detection unit that detects an edge included in the digital image through analysis of the image data; and

an image display unit that displays, when the edge being a detection result has a width wider than a predetermined first threshold width, the digital image in a state that the width of the edge is visible on the check screen,

wherein the image display unit displays, when the edge being a detection result has a width narrower than a predetermined second threshold width, the digital image on the check screen in a state that the edge is enhanced in edge intensity being a gray-scale difference of the image data.

2. The image display apparatus according to claim 1, further comprising:

a resolution acquisition unit that acquires a resolution of the image data; and

a threshold width determination unit that determines the first threshold width in accordance with the resolution being an acquisition result.

3. The image display apparatus according to claim 1, further comprising

a screen-display image data storage unit that applies resolution conversion to the image data in accordance with a resolution of the check screen, and stores a result of the resolution conversion as image data for screen display use, wherein

the image display unit changes a display state of the edge by applying image processing to the image data for screen display use, and displays a result of the image processing on the check screen.

4. An image display apparatus according to claim 1, wherein the detected edge having a width wider than a predetermined first threshold width is displayed after the detected edge is blurred.

5. An image display method of displaying a digital image on a screen for check use, comprising:

detecting an edge included in the digital image through analysis of image data of the digital image that is stored in advance;

displaying, when the edge being a detection result has a width wider than a predetermined first threshold width, the digital image in a state that the width of the edge is visible on the check screen; and

displaying, when the edge being a detection result has a width narrower than a predetermined second threshold width, the digital image in a state that the edge is enhanced in edge intensity being a gray-scale difference of the image data.

6. An image display method of displaying a digital image on a screen for check use, comprising:

detecting an edge included in the digital image through analysis of image data of the digital image that is stored in advance; and

displaying, when the edge being a detection result has a width narrower than a predetermined second threshold width, the digital image on the check screen in a state that the edge is enhanced in edge intensity being a gray-scale difference of the image data.