Image projection apparatus capable of preventing image which would be hindrance to viewing printed material from being projected on printed material, control method therefor, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorToru Koike
Life of this patent
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Abstract
An image projection apparatus which is capable of preventing an image which would be a hindrance to viewing printed material from being projected on the printed material. Based on input image data, a projection unit projects a projected image. Whether or not the printed material is placed on a screen at a projection destination of light projected by the projection unit is determined. The projection unit is controlled based on a result of the determination.
Claims15
An image projection apparatus comprising:
- a projection unit configured to project an image on a screen;
- and
- at least one processor and/or at least one circuit that performs operation of following units:
- a first determining unit configured to determine whether or not printed material is placed on the screen;
- a second determining unit configured to determine whether or not target image data corresponding to the printed material is stored in a storage device;
- and
- a control unit configured to control the projection unit, wherein
- in a case where the printed material is placed on the screen and the target image data is stored in the storage device, the control unit controls the projection unit to project an image based on the target image data, and
- in a case where the printed material is placed on the screen and the target image data is not stored in the storage device, the control unit controls the projection unit to project a white image on the printed material.
An image projection apparatus comprising:
- a projection unit configured to project an image onto a printed material on a screen, and
- at least one processor and/or at least one circuit that performs operations of following units:
- an obtaining unit configured to obtain target image data corresponding to the printed material on the screen from a storage device configured to store image data on an image to be projected onto the printed material;
- and
- a control unit configured to control the projection based on whether or not the obtaining unit obtains the target image data,
- wherein
- in a case where the obtaining unit obtains the target image data, the control unit controls the projection unit to project an image based on the target image data, onto the printed material on the screen.
A control method for an image projection apparatus having a projection unit configured to project an image on a screen, the control method comprising:
- determining whether or not printed material is placed on the screen;
- determining whether or not target image data corresponding to the printed material is stored in a storage device;
- and
- controlling the projection unit, wherein
- in a case where the printed material is placed on the screen and the target image data is stored in the storage device, the projection unit is controlled to project an image based on the target image data, and
- in a case where the printed material is placed on the screen and the target image data is not stored in the storage device, the projection unit is controlled to project a white image on the printed material.
A control method for an image projection apparatus having a projection unit configured to project an image onto a printed material on a screen, the control method comprising:
- obtaining target image data corresponding to the printed material on the screen from a storage device configured to store image data on an image to be projected onto the printed material;
- and
- controlling the projection unit based on whether or not the target image data is obtained, wherein
- in a case where the target image data is obtained, the projection unit controlled to project an image based on the target image data, onto the printed material off the screen.
A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for an image projection apparatus having a projection unit configured to project an image on a screen, the control method comprising:
- determining whether or not printed material is placed on the screen;
- determining whether or not target image data corresponding to the printed material is stored in a storage device;
- and
- controlling the projection unit, wherein
- in a case where the printed material is placed on the screen and the target image data is stored in the storage device, the projection unit is controlled to project an image based on the target image data, and
- in a case where the printed material is placed on the screen and the target image data is not stored in the storage device, the projection unit is controlled to project a white image on the printed material.
A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for an image projection apparatus having a projection unit configured to project an image onto a printed material on a screen, the control method comprising:
- obtaining target image data corresponding to the printed material on the screen from a storage device configured to store image data on an image to be projected onto the printed material;
- and
- controlling the projection unit based on whether or not the obtaining unit obtains the target image data, wherein
- in a case where the target image data is obtained, the projection unit is controlled to project an image based on the target image data, onto the printed material on the screen.
Dependencies are inferred from the claim text.