Processing and printing video images and scanned original image with controlled aspect ratios of video signals
First Claim
1. An image processing apparatus for converting image data between a first digital image signal and a second digital image signal, a vertical-to-horizontal ratio of each pixel of the first digital image signal being different from a vertical-to-horizontal ratio of each pixel of the second digital image signal, said apparatus comprising:
- a) input means for inputting the first digital image signal;
b) generating means for generating a discrimination signal capable of discriminating the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means;
c) conversion means for forming the second digital image signal by converting the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means into the vertical-to-horizontal ratio of each pixel of the second digital image signal in accordance with the discrimination signal generated by said generating means.
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Abstract
An image processing apparatus can deal with a plurality of kinds of video signals. The apparatus includes a circuit for generating a signal indicating the kind of an input video signal, and magnification varying circuit for varying the aspect ratio of an image of the input video signal in accordance with a result of discrimination by the signal generation circuit. The aspect ratio of a pixel (picture element) is automatically corrected in accordance with the input video signal by the above-described circuits. Accordingly, it becomes unnecessary to manually set the aspect ratio of a pixel in accordance with the kind of the input video signal. Hence, operation is greatly simplified.
34 Citations
19 Claims
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1. An image processing apparatus for converting image data between a first digital image signal and a second digital image signal, a vertical-to-horizontal ratio of each pixel of the first digital image signal being different from a vertical-to-horizontal ratio of each pixel of the second digital image signal, said apparatus comprising:
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a) input means for inputting the first digital image signal; b) generating means for generating a discrimination signal capable of discriminating the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means; c) conversion means for forming the second digital image signal by converting the vertical-to-horizontal ratio of each pixel of the first digital image signal input by said input means into the vertical-to-horizontal ratio of each pixel of the second digital image signal in accordance with the discrimination signal generated by said generating means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An image processing apparatus, comprising:
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a) input means for inputting a first image signal conforming to a broadcast standard; b) generating means for generating a discrimination signal indicating a kind of the broadcast standard for the first image signal input by said input means; and c) conversion means for converting the first image signal input by said input means into a second image signal so as to form a predetermined aspect ratio of each pixel of the first image signal in accordance with the discrimination signal generated by said generating means. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An image processing apparatus, comprising:
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a) selection means for selecting either an image signal from an original scanner or an image signal conforming to a broadcast standard; and b) conversion means for converting the image signal selected by said selection means into a second image signal so as to form a predetermined aspect ratio of each pixel of the selected image signal, said conversion means including control means for controlling a conversion in accordance with a selection performed by said selection means. - View Dependent Claims (16, 17, 18, 19)
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Specification