Image processor, image processing method and programm

Abstract

An image processing apparatus, comprising: an exposing device for exposing an image forming material so as to form a latent image on the image forming material based on image data; a developing device for developing and visualizing the latent image on the exposed image forming material so as to form an image; a measuring device for measuring the image density of the image on the developed image forming material; a calibrating device for forming a table to define a relation between an image signal and image density on the basis of plural different test image data and measured-image densities thereof; a storing device for storing a characteristic change model indicating a characteristic change of at least one of the exposing device and the developing device with time; a difference calculating device to calculate a density difference on the basis of the characteristic change model between the time of forming the table and the time of forming an image based on image signal of diagnostic image data; and a correcting device for correcting the table on the basis of the density difference calculated by the difference calculating device.

Description

technical field [0001] The present invention relates to an image processing device, an image processing method, and a program, and more particularly, to an image processing device capable of finishing a film at an appropriate density during image formation and always maintaining a stable density and outputting the image processing device. , image processing method and program. Background technique [0002] In medical laser imaging devices (image processing devices), in order to express diagnostic images in gradation, there is a strong demand for a basic function of maintaining stable output of gradation. [0003] In addition, in medical laser imaging devices, in order to control the image forming part so that the digital and video signals (specified density signals) sent from diagnostic devices and imaging devices have a constant density on the film, a so-called calibration function is provided. . [0004] However, after the calibration is performed, although a certain con...

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Problems solved by technology

[0017] However, even in the device described in the above-mentioned Patent Document 2, no attention is paid to the effect of film degradation over time, and since this effect still exists, it is difficult to stabilize the density.

[0018] However, each device of the exposure system and thermal development system includes a factor of variation, and the film also changes with time, so there is a problem that the setting of the amount of change in the characteristics and the density value for comparison is prone to errors. Therefore, if the aforementioned characteristics The setting of the change amount and the density value for comparison are different, and even if the processing system reproduces the density as set, the density decreases and the density increases as a result.

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