1. A camera having an exposure device for photographing an object image formed via a photographing optical system, said camera comprising:
a focus adjusting system which performs a search operation for detecting an in-focus position while moving a focusing lens group;
a first switch which causes activation of said focus adjusting system;
a second switch which causes activation of said exposure device; and
a controller which controls operations of said exposure device,
wherein, upon said second switch being operated before completion of said search operation after said focus adjusting system starts to operate, said controller terminates said search operation and activates said exposure device after said focus adjusting system performs said search operation up to a specified focal length position in the case where said second switch is operated before said focusing lens group reaches said specified focal length position,
wherein, upon said second switch being operated before completion of said search operation after said focus adjusting system starts to operate, said controller immediately terminates said search operation and activates said exposure device in the case where said second switch is operated after said focusing lens group reaches said specified focal length position,
wherein, in the case where said in-focus position is detected by said search operation after completion of said search operation, said focusing lens group is moved to said in-focus position and thereupon said controller activates said exposure device, and
wherein, in the case where no in-focus position is detected by said search operation after completion of said search operation, said focusing lens group is moved to said specified focal length position and thereupon said controller activates said exposure device.
2. The camera according to claim 1, wherein said exposure device comprises an imaging device which converts said object image into electrical image data and outputs said electrical image data, and
wherein said focus adjusting system inputs said image data and detects said in-focus position based on said image data while moving said focusing lens group from a closest focus position toward an infinite focus position.
3. The camera according to claim 2, wherein said focus adjusting system comprises a contrast detection focus adjusting system which detects said in-focus position by detecting contrast values from said image data.
4. The camera according to claim 1, wherein said specified focal length position corresponds to a hyperfocal distance of said photographing optical system.
5. The camera according to claim 4, wherein said hyperfocal distance is set based on a brightness value of said object image and a focal length of said photographing optical system.
6. The camera according to claim 1, wherein said first switch and said second switch are associated with a release button provided on a camera body of said camera, and
wherein said first switch and said second switch are turned ON upon said release button being half and fully depressed, respectively.
7. The camera according to claim 1, wherein said focus adjusting system comprises a stepping motor which moves said focusing lens group stepwise from said closest focus position toward said infinite focus position.
8. The camera according to claim 7, further comprising an imaging device which captures an object image via said photographing optical system and converts said captured object image into an electrical image signal,
wherein, while moving said focusing lens group stepwise by said stepping motor, said autofocus system captures an object image each time said focusing lens group is moved by one step, and detects a peak contrast among a plurality of contrasts of said electrical image signals of said captured object images to determine said in-focus position.
9. A camera having an exposure device for photographing an object image formed via a photographing optical system, said camera comprising:
a focus adjusting system which performs a search operation for detecting an in-focus position while moving a focusing lens group;
a first switch which causes activation of said focus adjusting system;
a second switch which causes activation of said exposure device; and
a controller which controls operations of said exposure device,
wherein, upon said second switch being operated before completion of said search operation after said focus adjusting system starts to operate, said controller terminates said search operation and activates said exposure device after said focus adjusting system performs said search operation up to a specified focal length position in the case where said second switch is operated before said focusing lens group reaches said specified focal length position,
wherein, upon said second switch being operated before completion of said search operation after said focus adjusting system starts to operate, said controller immediately terminates said search operation and activates said exposure device in the case where said second switch is operated after said focusing lens group reaches said specified focal length position.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image processing apparatus, comprising:
a document reading unit configured to read a plurality of image data each having a different phase from a document by single scanning;
a super-resolution processing unit configured to generate super-resolution image data by using the plurality of image data each having a different phase, so as to have super-resolution higher than those of the plurality of image data; and
an image processing unit configured to carry out multiple image processing to the super-resolution image data,
wherein
each of the multiple image processing is associated with specific resolution; and
wherein
the super-resolution processing unit starts super-resolution processing at the time when image data necessary for obtaining the specific resolution associated with any of the image processing is obtained.
2. The image processing apparatus according to claim 1,
wherein
the super-resolution processing unit determines a target number of sheets necessary for carrying out the super-resolution processing by obtaining the specific resolution, for each of the obtained resolution, and confirms the number of sheets of image data each having a different phase and read by the image reading unit, and when the confirmed number reaches any of the determined target sheet numbers, starts the super-resolution processing to resolution corresponding to the reached target number.
3. The image processing apparatus according to claim 2,
wherein
the image processing unit, upon completion of the super-resolution processing, starts image processing associated with resolution corresponding to the reached target number of sheets to super-resolution image data subjected to the super-resolution processing.
4. The image processing apparatus according to claim 1,
wherein
the multiple image processing includes processing of synthesizing image data, and
the processing of synthesizing image data synthesizes super-resolution image data subjected to image processing first and super-resolution image data subjected to image processing later.
5. The image processing apparatus according to claim 4,
wherein
the processing of synthesizing image data, when resolution of one of the super-resolution image data subjected to the image processing differs from that of the other of the super-resolution image data subjected to the image processing, is carried out by causing both resolution to be the same one.
6. A method of image processing, the method comprising the steps of:
reading a plurality of image data each having a different phase from a document by single scanning;
generating super-resolution image data by using the plurality of image data each having a different phase, so as to have super-resolution higher than those of the plurality of image data; and
carrying out multiple processing to the super-resolution image data,
wherein
each of the multiple image processing is associated with specific resolution, and
wherein
the step of generating super-resolution image data is started at the time when image data necessary for obtaining the specific resolution associated with any of image processing is obtained.
7. A program storable in a computer-readable storage medium for carrying out an image processing method by a computer, the image processing method comprising:
reading a plurality of image data each having a different phase from a document by single scanning;
generating super-resolution image data by using the plurality of image data each having a different phase, so as to have super-resolution higher than those of the plurality of image data; and
carrying out multiple processing to the super-resolution image data,
wherein
each of the multiple image processing is associated with specific resolution, and
wherein
the step of generating super-resolution image data is started at the time when image data necessary for obtaining the specific resolution associated with any of the image processing is obtained.