Image processor

• US 20040227978A1
• Filed: 09/24/2002
• Published: 11/18/2004
• Est. Priority Date: 09/27/2001
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Enomoto, Jun
• Granted Patent: US 7,433,089 B2
• Time in Patent Office: Days
• US Class Current: 358/3.26
• CPC Class Codes: G06T 5/80 Geometric correction
• CPC Class Codes: H04N 1/40 Picture signal circuits H04N1/387 takes precedence
• CPC Class Codes: H04N 1/409 Edge or detail enhancement; Noise or error suppression
• CPC Class Codes: H04N 23/81 for suppressing or minimising disturbance in the image signal generation
• CPC Class Codes: H04N 25/61 the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"

Abstract

The image processor performs aberration correction processing for correcting aberration due to a photographic lens on input image data obtained from an image optically photographed through the photographic lens of a camera and predetermined image processing on the input image data so as to obtain output image data. The predetermined image processing is performed after the aberration correction processing. Alternatively, The predetermined image processing is performed prior to the aberration correction processing. As a result, the image processor is capable of correcting the aberration due to the lens which degrades the quality of a print without causing any inconvenience, thereby obtaining a high-quality image.

Claims

1. An image processor comprising:

means for performing aberration correction processing for correcting aberration due to a photographic lens on input image data obtained from an image optically photographed through the photographic lens of a camera; and

means for performing predetermined image processing on the input image data so as to obtain output image data,

wherein the predetermined image processing is performed after the aberration correction processing.

2. The image processor according to claim 1, wherein the predetermined image processing is soft focus processing, the soft focus processing being performed after the aberration correction processing.

3. The image processor according to claim 1, wherein the predetermined image processing is monotone processing, the monotone processing being performed after the aberration correction processing.

4. The image processor according to claim 1, wherein, in the case where the predetermined image processing is mask processing, the mask processing is performed in any one of two ways:

a mask image is produced from image data to be subjected to the aberration correction processing and the aberration correction processing is performed on the image data and the mask image, after which the mask processing is performed; and

the aberration correction processing is performed on the image data and the mask image is produced from the image data which has been subjected to the aberration correction processing, after which the mask processing is performed.

5. The image processor according to claim 1, wherein, in the case where the predetermined image processing is processing requiring an approximate position to be specified in advance so as to perform the image processing, the predetermined image processing is performed in any one of two ways:

the approximate position is specified in consideration of a shift of a specified position due to the aberration correction processing, and the aberration correction processing is performed, after which the predetermined image processing is performed; and

the aberration correction processing is performed on the image data, and the approximate position is specified to the image data which has been subjected to the aberration correction processing, after which the predetermined image processing is performed.

6. The image processor according to claim 5, wherein the predetermined image processing is one of red-eye correction processing, cross filter processing, and dust/flaw elimination processing.

7. The image processor according to claim 1, wherein the predetermined image processing is sharpness processing, the sharpness processing being performed after the aberration correction processing.

8. The image processor according to claim 1, wherein the aberration correction processing is followed by synchronization when the input image data is synchronized prior to performing the predetermined image processing

9. An image processor comprising:

means for performing aberration correction processing for correcting aberration due to a photographic lens on input image data obtained from an image optically photographed through the photographic lens of a camera; and

means for performing predetermined image processing on the input image data so as to obtain output image data,

wherein the predetermined image processing is performed prior to the aberration correction processing.

10. The image processor according to claim 9, wherein the predetermined image processing includes dust/flaw elimination processing, the dust/flaw elimination processing being performed prior to the aberration correction processing.