Image processing apparatus
First Claim
1. An apparatus for composing image data of a main picture and image data of a sub-picture by a chroma key process, comprising:
- attribute detecting means for detecting an attribute of an image contained in the sub-picture;
area setting means for setting a partial area of the sub-picture as a chroma key mask area in accordance with an output from said attribute detecting means; and
composing means for composing the image data of the main picture and the image data of the sub-picture by executing the chroma key process for an area other than the chroma key mask area without executing the chroma key process for the chroma key mask area in the sub-picture.
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Abstract
In an apparatus for composing image data of a main picture and image data of a sub-picture by a chroma key process, an attribute of an image contained in the sub-picture is detected, a partial area of the sub-picture is set as a chroma key mask area in accordance with the attribute detection result, and composing the image data of the main picture and the image data of the sub-picturee by executing the chroma key process for an area other than the chroma key mask area without executing the chroma key process for the chroma key mask area in the sub-pictur.
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Citations
21 Claims
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1. An apparatus for composing image data of a main picture and image data of a sub-picture by a chroma key process, comprising:
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attribute detecting means for detecting an attribute of an image contained in the sub-picture;
area setting means for setting a partial area of the sub-picture as a chroma key mask area in accordance with an output from said attribute detecting means; and
composing means for composing the image data of the main picture and the image data of the sub-picture by executing the chroma key process for an area other than the chroma key mask area without executing the chroma key process for the chroma key mask area in the sub-picture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An image processing apparatus, comprising:
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receiving means for receiving a television broadcast signal multiplexing image data and addition information data;
main-picture generating means for generating a main-picture in accordance with the image data;
sub-picture generating means for generating a sub-picture in accordance with the addition information data;
attribute detecting means for detecting an attribute of an image contained in the sub-picture in accordance with the addition information data;
area setting means for setting a partial area of the sub-picture as a chroma key mask area in accordance with an output from said attribute detecting means; and
composing means for composing the image data of the main picture and the image data of the sub-picture by executing the chroma key process for an area other than the chroma key mask area without executing the chroma key process for the chroma key mask area in the sub-picture. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. (canceled):
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20. A method of composing image data of a main picture and image data of a sub-picture by a chroma key process, comprising the steps of:
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detecting an attribute of an image contained in the sub-picture;
setting a partial area of the sub-picture as a chroma key mask area in accordance with an attribute detection result; and
composing the image data of the main picture and the image data of the sub-picture by executing the chroma key process for an area other than the chroma key mask area without executing the chroma key process for the chroma key mask area in the sub-picture.
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21. An image processing method, comprising the steps of:
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receiving a television broadcast signal multiplexing image data and addition information data;
generating a main-picture in accordance with the image data;
generating a sub-picture in accordance with the addition information data;
detecting an attribute of an image contained in the sub-picture in accordance with the addition information data;
setting a partial area of the sub-picture as a chroma key mask area in accordance with an attribute detection result; and
composing the image data of the main picture and the image data of the sub-picture by executing the chroma key process for an area other than the chroma key mask area without executing the chroma key process for the chroma key mask area in the sub-picture.
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Specification