On-screen device for subject of interest in portable electronic device, and method of controlling same
First Claim
1. An on-screen device for an image of interest in a portable electronic device, comprising:
- an input device for inputting image-of-interest data representing an image of interest having a prescribed size equivalent to one frame of an image;
a reading device for reading on-screen bitmap image data out of a storage medium that stores the on-screen bitmap image data, said on-screen bitmap image data representing an on-screen image, which has an amount of data less than that of reference bitmap image data representing the one frame of the image and which is superimposed on the image of interest represented by the image-of-interest data that has been input from said input device;
an adjustment device for adjusting the amount of the on-screen bitmap image data in such a manner that the size of the on-screen image represented by the on-screen bitmap image data that has been read by said reading device will take on said prescribed size equivalent to one frame of an image; and
a device for applying on-screen processing to the image-of-interest data and the adjusted on-screen bitmap image data in such a manner that the on-screen image, which is represented by the on-screen bitmap image data that has been adjusted by said adjustment device, will be superimposed on the image of interest represented by the image-of-interest data that has been input from said input device.
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Accused Products
Abstract
Data representing a bitmap image of 320 pixels horizontally by 480 lines vertically is stored in an SDRAM. The amount of this bitmap image data is adjusted by a data adjustment circuit so as to obtain a bitmap image of 640 pixels horizontally by 480 lines vertically. The image of a subject is sensed by an image sensing device and sensed-image data representing a subject image of 640 pixels horizontally by 480 lines vertically is obtained. The bitmap image data whose amount of data has been adjusted and the sensed-image data are applied to an on-screen processing circuit, which proceeds to execute on-screen processing so as to superimpose the bitmap image on the sensed image. The image that is the result of superimposing the bitmap image on the sensed image is displayed on a display device. In another aspect, the image of a subject is sensed using an image sensing device, whereby YC data is obtained. The YC data is recorded on an SDRAM. The YC data is then read from the SDRAM and converted to bitmap image data in a table RAM. The bitmap image data obtained by the conversion is recorded on the SDRAM. Thus the image of a subject obtained by imaging can be converted to data representing a bitmap image superimposed on the image of the subject.
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Citations
10 Claims
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1. An on-screen device for an image of interest in a portable electronic device, comprising:
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an input device for inputting image-of-interest data representing an image of interest having a prescribed size equivalent to one frame of an image;
a reading device for reading on-screen bitmap image data out of a storage medium that stores the on-screen bitmap image data, said on-screen bitmap image data representing an on-screen image, which has an amount of data less than that of reference bitmap image data representing the one frame of the image and which is superimposed on the image of interest represented by the image-of-interest data that has been input from said input device;
an adjustment device for adjusting the amount of the on-screen bitmap image data in such a manner that the size of the on-screen image represented by the on-screen bitmap image data that has been read by said reading device will take on said prescribed size equivalent to one frame of an image; and
a device for applying on-screen processing to the image-of-interest data and the adjusted on-screen bitmap image data in such a manner that the on-screen image, which is represented by the on-screen bitmap image data that has been adjusted by said adjustment device, will be superimposed on the image of interest represented by the image-of-interest data that has been input from said input device. - View Dependent Claims (2)
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3. A method of controlling an on-screen device for an image of interest in a portable electronic device, comprising the steps of:
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inputting image-of-interest data representing an image of interest having a prescribed size equivalent to one frame of an image;
reading on-screen bitmap image data out of a storage medium that stores the on-screen bitmap image data, the on-screen bitmap image data representing an on-screen image, which has an amount of data less than that of reference bitmap image data representing the one frame of the image and which is superimposed on the image of interest represented by the image-of-interest data that has been input;
adjusting the amount of data of the on-screen bitmap image data in such a manner that the size of the on-screen image represented by the read on-screen bitmap image data will take on the prescribed size equivalent to one frame of an image; and
applying on-screen processing to the image-of-interest data and the adjusted on-screen bitmap image data in such a manner that the on-screen image, which is represented by the adjusted on-screen bitmap image data that has been adjusted, will be superimposed on the image of interest represented by the image-of-interest data that has been input.
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4. A digital camera equipped with an on-screen function, comprising:
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an image sensing device for sensing images of different subjects and successively outputting subject image data representing two frames of the subject images;
a first recording controller for storing, on a recording medium, the subject image data representing the two frames of the subject images output from said image sensing device;
a first converter for converting the subject image data representing one subject image, from the subject image data representing the two frames of the subject images stored on the recording medium, to bitmap image data representing a bitmap image, which is to be superimposed on the other subject image, and having attached control data that indicates transparency of this bitmap image;
a composite-image generating device for generating a composite image, which is obtained by superimposing the bitmap image on said other subject image at the transparency indicated by the control data; and
an output device for outputting data representing the composite image that has been generated by said composite-image generating device. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A method of controlling operation of a digital camera equipped with an on-screen function, comprising the steps of:
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sensing the images of different subjects and successively obtaining subject image data representing two frames of the subject images;
storing, on a recording medium, the subject image data representing the two frames of the subject images that have been obtained;
converting the subject image data representing one subject image, from the subject image data representing the two frames of the subject images stored on the recording medium, to bitmap image data representing a bitmap image, which is to be superimposed on the other subject image, and having attached control data that indicates transparency of this bitmap image;
generating a composite image, which is obtained by superimposing the bitmap image on said other subject image at the transparency indicated by the control data; and
outputting data representing the composite image that has been generated.
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Specification