Image pickup apparatus and control method thereof
AssigneeCanon Kabushiki Kaisha
InventorKenji Takahashi
Life of this patent
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Abstract
In an image pickup apparatus, image data obtained by an image pickup unit is subjected to predetermined image processing, and an image is displayed on an electronic viewfinder screen based on the image data that has undergone the image processing. A specified color is determined based on color information included in a predetermined region of an image that is currently being displayed on the electronic viewfinder screen, and image processing parameters are produced so that color conversion is carried out on the image while eliminating color components of colors other than the determined specified color.
Claims12
An image pickup apparatus comprising:
- an image pickup unit;
- an image processing unit configured to process an image signal obtained by the image pickup unit;
- a display unit configured to display, on a display, an image based on the image signal that is picked up by the image pickup unit in real time and outputted from the image processing unit;
- a color determination unit configured to determine a color value based on color information included in a region of an image that is picked up in real time by the image pickup unit and being displayed on the display by the display unit;
- and
- a color conversion parameter determination unit configured to determine color conversion parameters for leaving the color value determined by the color determination unit and converting a color component value included in the image signal other than the determined color value into a predetermined color value,
- wherein the image signal is processed by the image processing unit based on the parameters determined by the color conversion parameter determination unit and the processed image is displayed by the display unit.
A method of controlling an image pickup apparatus, the method comprising:
- an image pickup step of converting light from a subject into an image signal using an image pickup element;
- an image processing step of processing the image signal obtained in the image pickup step;
- a display step of displaying, on a display, an image based on the image signal that is picked up in the image pickup step in real time and outputted in the image processing step;
- a color determination step of determining a color value based on color information included in a region of an image that is picked up in real time in the image pickup step and being displayed on the display in the display step;
- a color conversion parameter determination step of determining color conversion parameters for leaving the color value determined in the color determination step and converting a color component value included in the image signal other than the determined color value into a predetermined color value;
- and
- a control step of processing the image signal in the image processing step based on the parameters determined in the color conversion parameter determination step and of displaying the processed image signal in the display step.
Dependencies are inferred from the claim text.