Method and apparatus for image processing using a template image
First Claim
Patent Images
1. An image compositing method, comprising the steps of:
- (a) subjecting to an expanding process template image data created by a first converting process and a compressing process being performed in this order;
(b) subjecting to a second converting process template image data created by the expanding process in said step (a); and
(c) compositing template image data created by the second converting process in said step (b) with photographed image data, wherein the first converting process includes a dividing process for dividing a raw data value by a first numeral, and an adding process for adding a second numeral to a divided value obtained by the dividing process, and the second converting process includes a subtracting process for subtracting the second numeral from a data value, and a multiplying process for multiplying a subtracted value obtained by the subtracting process by the first numeral.
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Abstract
A digital camera includes a memory card. The memory card is previously recorded with template image data that has been subjected to conversion of Y-data effective range and JPEG compressing. A CPU expands this template image data by a JPEG method, and then subjects only expanded data greater than a predetermined value to effective-range conversion that is reverse to the above. The CPU composites the template image data thus obtained with photographed image data, thereby creating composite image data.
14 Citations
8 Claims
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1. An image compositing method, comprising the steps of:
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(a) subjecting to an expanding process template image data created by a first converting process and a compressing process being performed in this order; (b) subjecting to a second converting process template image data created by the expanding process in said step (a); and (c) compositing template image data created by the second converting process in said step (b) with photographed image data, wherein the first converting process includes a dividing process for dividing a raw data value by a first numeral, and an adding process for adding a second numeral to a divided value obtained by the dividing process, and the second converting process includes a subtracting process for subtracting the second numeral from a data value, and a multiplying process for multiplying a subtracted value obtained by the subtracting process by the first numeral. - View Dependent Claims (2, 3)
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4. A digital camera, comprising:
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an expander for subjecting to an expanding process template image data created by a first converting process and a compressing process being performed in this order; a processor for subjecting to a second converting process template image data created by the expanding process of said expander; and a compositor for compositing template image data created by the second converting process of said processor with photographed image data, wherein the first converting process is a process of dividing a raw data value by a first numeral and adding a second numeral to the divided value, and the second converting process is a process of subtracting the second numeral from a data value and multiplying the subtracted value by the first numeral. - View Dependent Claims (5, 6, 7, 8)
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Specification