| 摘要 |
<p>PURPOSE:To realize a desired density and obtain favorable image quality at the time of recording a multi-gradational image, by connecting an adjacent information referencing means for referencing recording information for an adjacent pixel and a recording signal controlling part for varying a recording signal according to the result of referencing, to an optical shutter array. CONSTITUTION:In an image recorder employing an optical shutter array, a monochromic photographic printing paper with a gamma of 1.5 is used as a photosensitive material 102, and a fluorescent tube having a fluorescence wavelength in a high- sensitivity region of the material 102 is used as a light source 101. When an image signal 108 is inputted to the image printer, a controlling part 109 calculates a control signal corresponding to the density level of each pixel on an image on the basis of an image signal 108, performs correction for eliminating the effects of recording information for an adjacent pixel, and generates a signal for designating the position of the image. The control signal outputted by the controlling part 109 applies a voltage according to the density level of the image to each shutter part 107 of the shutter array 106, thereby controlling the quantity of light transmitted through the shutter part 107. Thus, characters or images are recorded on the material 102 while expressing multiple gradations with a high contrast ratio for each pixel.</p> |
