Abstract: There is described an image processing apparatus that converts (n+m)-bit monochromatic image data of a single channel into n-bit color display image data of three channels or more, based on predetermined correlations.

Abstract: There is described an image display apparatus that includes an image data processing section to convert (n+m)-bit monochromatic image data to a n-bit color display image-data group, based on a predetermined correlation, and a color image display section to display a color image on it, based on the n-bit color display image-data group. The image data processing section includes: a candidate selection section to select “H” sets of signal-values out of all combinations of signal-values included in the n-bit color display image-data group as the candidate color display signal-value sets; a signal value decision section to determine a color display signal-value set, to be correlated with the (n+m)-bit monochromatic image data, from among the “H” sets of candidate color display signal-value sets; and a correlation establishing section to establish the correlation between the (n+m)-bit monochromatic image data and the n-bit color display image-data group.

Abstract: An image processing method and device for converting monochromatic image data into color display image data, characterized in that the display characteristics are obtained, candidate color display image is selected according to the signal value of the monochromatic image data, at least either target brightness information or target chromatic information at least one of the brightness and chromaticity comprised in the candidate color display image data is calculated based on the display characteristics, the signal value of the color display image data corresponding to the signal value of the monochromatic image data is determined from the candidate color display image data based on at least one of the comparison between each calculated brightness and the target brightness and the comparison between each chromaticity and the target chromaticity, and the signal value of the monochromatic image data is associated with that of the determined color display image data.

Abstract: In medical image recording apparatus, exposure unit forms a latent image on film by exposing based on a testing exposure data for correction of density characteristics of the leading edge and/or the trailing edge of film, and heat developer heat-develops the latent image and records it on film, and density measurer measures the density characteristics of the heat-developed testing exposure image, and then, controller determines the correction areas of the leading edge and/or the trailing edge of film based on the result of the density measurement and corrects the density characteristics of the leading edge and/or the trailing edge of film for the correction areas at the image recording stage of a diagnostic image data.

Abstract: A medical image recording system for recording the medical image on a recording medium, including: an image data forming section that forms image data including medical image data of a radiographed object and supplementary information; and an image recording section that records the medical image on the basis of the medical image data on the recording medium, wherein the image recording section comprises a switching device for selecting the writing pitch at the time of the recording on the basis of the supplementary information.

Abstract: There is described an image processing apparatus that converts (n+m)-bit monochromatic image data of a single channel into n-bit color display image data of three channels or more, based on predetermined correlations.

Abstract: There is described a medical image recording system for recording an image on a reflex-type recording medium based on image information, and a medical image recording system for recording with ink-jet the medical image information obtained through an input device, such as a medical photographing device. The system includes an image-processing section to apply a dynamic-range compression processing to original image signals representing the medical image and inputted therein, in order to generate output image signals, and an image-forming section to form a compressed medical image on the reflex-type recording medium, based on the output image signals generated by the image-processing section. The dynamic-range compression processing is to compress a dynamic-range of density variation to be expressed on the reflex-type recording medium.

Abstract: There is described an image processing method and an image converting apparatus for performing the image processing for recording the medical image information. The apparatus includes an image converting section to convert the image in respect to the original image signals; an image feature extracting section to extract image features for every pixel included in the plurality of pixels in respect to the original image signals; a sharpness information obtaining section to obtain sharpness information from the image converting section; a sharpness calculating section to calculate correlation between the image features and the sharpness information; and a frequency processing section to compensate for a sharpness level of the image, based on the correlation calculated by the sharpness calculating section, so as to reduce a variation of the sharpness level before and after the image converting section converts the image in respect to the original image signals.

Abstract: The invention concerns an image recording apparatus suitable for forming a medical image that is used for a medical diagnosis, and a test pattern for evaluating a quality of the medical image. The image recording apparatus includes a printing section to either the medical image or the test pattern on the recording medium, based on image date; a printing-condition setting section to set a printing condition for printing the test pattern; and a printing-condition displaying section to display the printing condition set by the printing-condition setting section. The printing section prints at least one of a sharpness-evaluating pattern and a granularity-evaluating pattern.

Abstract: A method of recording a transmission image composed of dots on a recording medium having the steps of; moving a recording medium in a sub-scanning direction, and moving a recording head relatively with respect to the recording medium in a main scanning direction which is crossing the sub-scanning direction, wherein a diameter D of a dot recorded on said recording medium falls within a range expressed by 1.5A?D?A+150 [?m], wherein, A=max(Pm, Ps), Pm=pitch of an array of pixels in the main scanning direction, Ps=pitch of an array of pixels in the sub-scanning direction.

Abstract: An image recording method for visualizing an image signal of medical diagnosis, which has the steps of: inputting the image signal of medical diagnosis; processing the image signal of medical diagnosis to get correct sharpness in visualized image by applying a frequency enhancement processing; and visualizing the image signal of medical diagnosis by conducting an ink-jetting process to form an image on a recording medium based on a processed image signal, wherein the ink-jetting process has a characteristic such that sharpness of a visualized image varies in relation with a density of the visualized image; wherein degree of enhancement in the frequency enhancement processing is determined according to a density of visualized image.

Abstract: In medical image recording apparatus, exposure section forms a latent image on film by exposing film based on a testing exposure signal for correction of density characteristics of the leading edge and/or the trailing edge of film, and heat development section heat-develops to visualize the latent image and records it on film, and density measurement section measures the density characteristics of the testing exposure signal on the heat-developed film and then, shading correction section determines the correction areas of the leading edge and/or the trailing edge of film based on the result of the density measurement and corrects the density characteristics of the leading edge and/or the trailing edge of film for the correction areas at the image recording stage of a diagnostic image data.

Abstract: In medical image recording apparatus 1?, exposure means 2 forms a latent image on film 1 by exposing based on a testing exposure data for correction of density characteristics of the leading edge and/or the trailing edge of film 1, and heat developing means 3 heat-develops the latent image and records it on film 1, and density measuring means 7 measures the density characteristics of the heat-developed testing exposure image, and then, control means 111 determines the correction areas of the leading edge and/or the trailing edge of film 1 based on the result of the density measurement and corrects the density characteristics of the leading edge and/or the trailing edge of film 1 for the correction areas at the image recording stage of a diagnostic image data.

Abstract: There is described an inkjet recording medium that can display image suitable for observation without employing wet development processing. The recording medium is substantially transparent and includes a supporting base shaped in a sheet; and an ink-absorbing layer that is formed on at least one of both sides of the supporting base, and that absorbs ink particles so as to form the image. The diffuse transmission density of a first area, being a part of the recording medium on which no image is formed, is in a range of 0.45-0.15, and a Q-factor of the first area is in a range of 1.50-1.00; and the recording medium is so constituted that a Q-factor of a second area, being a part of the recording medium on which an image is formed so as to adjust a diffuse transmission density at 1.00, is in a range of 1.20-1.00.

Abstract: A medical image recording system for recording the medical image on a recording medium, including: an image data forming section that forms image data including medical image data of a radiographed object and supplementary information; and an image recording section that records the medical image on the basis of the medical image data on the recording medium, wherein the image recording section comprises a switching device for selecting the writing pitch at the time of the recording on the basis of the supplementary information.

Abstract: There is described a medical-image recording apparatus that can output medical images having a plurality of different pixel sizes without deterioration of image quality. The apparatus includes an image recording section to record the medical image onto a recording medium with a writing pitch selected from a plurality of writing pitches P1 - - - Pn (P1<P2< - - - <Pn, n?2); an interpolating-magnification-factor determining section to determine an interpolating magnification factor, corresponding to a reading pitch employed for reading the medical image and each of the plurality of writing pitches P1 - - - Pn; an image interpolating section to apply an image interpolation processing to the medical image, based on the interpolating magnification factor; and a writing-pitch selecting section to select an appropriate writing pitch out of the plurality of writing pitches P1 - - - Pn. The appropriate writing pitch fulfills a specific relationship.

Abstract: There is described an inkjet recording medium that can display image suitable for observation without employing wet development processing. The recording medium is substantially transparent and includes a supporting base shaped in a sheet; and an ink-absorbing layer that is formed on at least one of both sides of the supporting base, and that absorbs ink particles so as to form the image. The diffuse transmission density of a first area, being a part of the recording medium on which no image is formed, is in a range of 0.45-0.15, and a Q-factor of the first area is in a range of 1.50-1.00; and the recording medium is so constituted that a Q-factor of a second area, being a part of the recording medium on which an image is formed so as to adjust a diffuse transmission density at 1.00, is in a range of 1.20-1.00.

Abstract: A recording method of a medical image comprising: jetting ink onto a recording medium to make the medical image, wherein a reflection density vs. transmission density characteristic curve of the recorded medical image is monotone non-decreasing in the range of the transmission density being not more than 2.

Abstract: There is described an image processing method and an image converting apparatus for performing the image processing for recording the medical image information. The apparatus includes an image converting section to convert the image in respect to the original image signals; an image feature extracting section to extract image features for every pixel included in the plurality of pixels in respect to the original image signals; a sharpness information obtaining section to obtain sharpness information from the image converting section; a sharpness calculating section to calculate correlation between the image features and the sharpness information; and a frequency processing section to compensate for a sharpness level of the image, based on the correlation calculated by the sharpness calculating section, so as to reduce a variation of the sharpness level before and after the image converting section converts the image in respect to the original image signals.

Abstract: There is described a medical image recording system for recording an image on a reflex-type recording medium based on image information, and a medical image recording system for recording with ink-jet the medical image information obtained through an input device, such as a medical photographing device. The system includes an image-processing section to apply a dynamic-range compression processing to original image signals representing the medical image and inputted therein, in order to generate output image signals, and an image-forming section to form a compressed medical image on the reflex-type recording medium, based on the output image signals generated by the image-processing section. The dynamic-range compression processing is to compress a dynamic-range of density variation to be expressed on the reflex-type recording medium.