摘要:
The present invention provides an image forming method on a planographic printing plate precursor (12) for plate-making in which an image is exposed to light by scanning with an infrared beam (L) and which obviates development using any developing liquid, as well as an image exposure apparatus used in the method. The plate precursor contains microcapsules and the method involves preheating the precursor prior to image recording.
摘要:
A method for forming an image on a planographic printing plate precursor including a substrate and an image recording layer disposed thereon, the layer including a hydrophobic precursor and a light-to-heat converting agent. The method includes an image exposing process of exposing the planographic printing plate precursor to infrared radiation to form an image on the image recording layer of the planographic printing plate precursor, and a post-heating process of heating the planographic printing plate precursor to a predetermined heating temperature.
摘要:
Corrective line quantities for compensating for differences between reading positions in an auxiliary scanning direction of linear image sensors of a 3-line image sensor are determined (in a step S1), and the determined corrective line quantities are divided into integer-part corrective line quantities INT[Cbg], INT[Crg] and decimal-part corrective line quantities DEC[Cbg], DEC[Crg]. The decimal-part corrective line quantities DEC[Cbg], DEC[Crg] are interpolated in real-time by a hardware arrangement from preceding image data and presently read image data, using line buffer memories (6J, 6K) (in a step S21). The integer-part corrective line quantities INT[Cbg], INT[Crg] are changed in addresses when they are stored as a file in a hard disk or the like (in a step S24), thus providing image data which are equalized in reading positions.
摘要:
The present invention provides an image forming method on a planographic printing plate precursor (12) for plate-making in which an image is exposed to light by scanning with an infrared beam (L) and which obviates development using any developing liquid, as well as an image exposure apparatus used in the method. The plate precursor contains microcapsules and the method involves preheating the precursor prior to image recording.
摘要:
An odd- and even-numbered pixel level difference correction process with respect to a linear image sensor is carried out by a successive three pixel weighted moving average calculating unit (71) according to the equation: Sc = (S + U)/2 = {S + (Sp + Sa)/2}/2 = (Sp + 2S + Sa)/4 where S represents a pixel signal to be corrected, Sc a corrected pixel signal, Sp a preceding pixel signal which precedes the pixel signal to be corrected, Sa a following pixel signal which follows the pixel signal to be corrected, and U an average of the preceding and following pixel signals. The odd- and even-numbered pixel level difference correction process can produce corrected image data whose waveform center of gravity remains positionally unshifted unlike a conventional correction process which corrects a pixel signal using only the pixel signal to be corrected and the preceding pixel signal.
摘要:
A method for forming an image on a planographic printing plate precursor including a substrate and an image recording layer disposed thereon, the layer including a hydrophobic precursor and a light-to-heat converting agent. The method includes an image exposing process of exposing the planographic printing plate precursor to infrared radiation to form an image on the image recording layer of the planographic printing plate precursor, and a post-heating process of heating the planographic printing plate precursor to a predetermined heating temperature.
摘要:
Corrective line quantities for compensating for differences between reading positions in an auxiliary scanning direction of linear image sensors of a 3-line image sensor are determined (in a step S1), and the determined corrective line quantities are divided into integer-part corrective line quantities INT[Cbg], INT[Crg] and decimal-part corrective line quantities DEC[Cbg], DEC[Crg]. The decimal-part corrective line quantities DEC[Cbg], DEC[Crg] are interpolated in real-time by a hardware arrangement from preceding image data and presently read image data, using line buffer memories (6J, 6K) (in a step S21). The integer-part corrective line quantities INT[Cbg], INT[Crg] are changed in addresses when they are stored as a file in a hard disk or the like (in a step S24), thus providing image data which are equalized in reading positions.
摘要:
An odd- and even-numbered pixel level difference correction process with respect to a linear image sensor is carried out by a successive three pixel weighted moving average calculating unit (71) according to the equation: Sc = (S + U)/2 = {S + (Sp + Sa)/2}/2 = (Sp + 2S + Sa)/4 where S represents a pixel signal to be corrected, Sc a corrected pixel signal, Sp a preceding pixel signal which precedes the pixel signal to be corrected, Sa a following pixel signal which follows the pixel signal to be corrected, and U an average of the preceding and following pixel signals. The odd- and even-numbered pixel level difference correction process can produce corrected image data whose waveform center of gravity remains positionally unshifted unlike a conventional correction process which corrects a pixel signal using only the pixel signal to be corrected and the preceding pixel signal.