Portable electronic apparatus, image processing method, photographing apparatus, and computer readable recording medium

• US 7,787,024 B2
• Filed: 04/13/2005
• Issued: 08/31/2010
• Est. Priority Date: 04/30/1997
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Yoshida, Shigeo
• Primary Examiner(s): Chan; Jason
• Assistant Examiner(s): FOSSELMAN, JOEL W
• Application Number:
  US11/105,682
• Publication Number:
  US 20050200727A1
• Time in Patent Office: 1,966 Days
• Field of Search: 348/231.9, 348/231
• US Class Current: 348/231.1
• CPC Class Codes: H04N 23/50 Constructional details
• CPC Class Codes: H04N 23/661 Transmitting camera control signals through networks, e.g. control via the Internet
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 9/7921 for more than one processing mode
• CPC Class Codes: H04N 9/8047 using transform coding

Abstract

Even when a remaining amount of an image memory built in a digital camera is decreased, the photographing can be further continued while reserving a photographed image. An image which is obtained from an image input unit including image pickup means is accumulated into an image memory. When a remaining amount calculating unit detects that the remaining amount of the image memory is small, an image record discriminating unit compares it with an image size in a photograph mode at that time which is obtained from an image size table, thereby discriminating whether the continuation of the photographing can be performed or not. When the photographing is impossible, an image selecting unit selects an old image, an image in which the number of colors is small, or the like on the basis of management data regarding the photographed images in a memory managing table. The selected image is transmitted by a PHS communication by a data transmitting apparatus. After it was transmitted, the image is erased from the image memory.

Claims

1. A photographing apparatus comprising:

image pickup means for photographing an object and outputting an image signal;

memory control means for allowing said image signal to be stored into image memory means;

remaining amount detecting means for detecting a remaining amount of said image memory means;

discriminating means for discriminating whether the photographing by said image pickup means can be performed or not on the basis of said detected remaining amount in response that a shutter switch is depressed to the half position in a photographing mode;

image selecting means for automatically selecting an image signal from said image memory means on the basis of a predetermined selecting condition when a result of said discrimination indicates that the photographing is impossible;

image processing means for effecting processing in the photographing mode to reduce resolution of said selected image signal and supplying said processed image signal to said image memory means; and

storing means for storing, after the image pickup means photographs the object and outputs the image signal in response that the shutter switch is depressed to the full position from the half position in the photographing mode, the image signal output from the image pickup means in the image memory means.

2. An apparatus according to claim 1, further comprising marking means for adding a mark to the image signal which is outputted from said image pickup means, and wherein said predetermined selecting condition relates to the presence or absence of said marking.

3. A control method of a photographing apparatus having image pickup means for photographing an object and outputting an image signal and memory control means for allowing the image signal to be stored into image memory means, the method comprising:

a remaining amount detecting step of detecting a remaining amount of the image memory means;

a discriminating step of discriminating whether the photographing by the image pickup means can be performed based on the detected remaining amount in response that a shutter switch is depressed to the half position in a photographing mode;

an image selecting step of automatically selecting an image signal from the image memory means based on a predetermined selecting condition when a result of the discrimination indicates that the photographing is impossible;

an image processing step of effecting processing in the photographing mode to reduce resolution of the selected image signal and supplying the processed image signal to the image memory means in the photographing mode; and

a storing step for storing, after the image pickup means photographs the object and outputs the image signal in response that the shutter switch is depressed to the full position from the half position in the photographing mode, the image signal output from the image pickup means in the image memory means.