EP0660590A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image reproducing system
Assignee: Fujifilm Holdings Corp
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Filing: 1994-12-22
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Granted: —
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Expires: 2014-12-22
Abstract
Abstract Image characteristics of a finally generated printed image that is reproduced from YMCK halftone dot percentage data from an image editor (12) by an image output unit B (14B) are simulated highly accurately taking into account periodic noise and random noise, and the simulated image is outputted by an image output unit A (14A). Specifically, the YMCK halftone dot percentage data from the image editor (12) are converted into color image data corresponding to image characteristics of the image output unit B (14B) by an LUT combiner/converter (26), and periodic noise and random noise that can be produced by the image output unit B (14B) are applied to the color image data. The noise-applied color image data are then outputted by the image output unit A (14A).
Inventors
- 👤 Shuichi C/O Fuji Photo Film Co. Ltd. Ohtsuka
- 👤 Akira C/O Fuji Photo Film Co. Ltd. Yoda
- 👤 Yoshinori C/O Fuji Photo Film Co. Ltd. Usami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 18:05
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6097; H04N1/6011; H04N1/603
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
148 words
A color image reproducing system for predicting the appearance of a finally generated image with a simulated image thereof reproduced on a monitor device from processed image data prior to finally generating the image from the processed image data, comprising: output condition storing means for storing selectable items of output conditions including an output method and an output medium to be set for an outputting device for outputting said finally generated image; and noise simulating process setting means for establishing a noise simulating process to reproduce noise characteristics of the finally generated image in the simulated image according to output conditions specified for said finally generated image, whereby to modify the processed image data, said simulated image being produced by setting a noise simulating process according to said output conditions specified for the finally generated image in the output condition storing means and effecting the noise simulating process.
Claim 2
Dependent Claim
70 words
A system according to claim 1, further comprising image converting process setting means for establishing an image converting process to convert the processed image data to reproduce color characteristics of said finally generated image in said simulated image according to the output conditions specified for the finally generated image in said output condition storing means, said simulated image being produced by effecting said noise simulating process and said converting process.
Claim 3
Dependent Claim
53 words
A system according to claim 1 or 2, wherein said noise simulating process setting means comprises means for establishing data representative of periodic noise as noise data to be applied to the processed image data, which is the image characteristics of the finally generated image which is generated according to said output conditions.
Claim 4
Dependent Claim
46 words
A system according to claim 3, wherein said data representative of periodic noise are given by using a template which establishes a density correcting process, and said periodic noise is reproduced in said simulated image by effecting said density correcting process at each position of pixels.
Claim 5
Dependent Claim
42 words
A system according to claim 4, wherein contrast adjusting data for adjusting a contrast varying depending on the periodic noise are further given, and said density correcting process is effected by superimposing data given by said template and said contrast adjusting data.
Claim 6
Dependent Claim
50 words
A system according to claim 1 or 2, wherein said correcting process setting means comprises means for establishing data representative of random noise as noise data to be applied to the processed image data, which is the image characteristics of the finally generated image generated according to said output conditions.
Claim 7
Dependent Claim
29 words
A system according to claim 6, wherein said data representative of random noise are generated by multiplying said contrast adjusting data by random numbers generated by a random-number generator.
Claim 8
Dependent Claim
55 words
A system according to claim 1 or 2, wherein said noise simulating process setting means comprises means for establishing data representative of periodic noise and random noise as noise data to be applied to the processed image data, which are the image characteristics of the printed image which is generated according to said output conditions.
References Cited (Backward Citations)
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