IMAGE PROCESSING APPARATUS, IMAGE FORMATION APPARATUS, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM

• Main Author: MURAKAMI YOSHINORI
• Format: Patent
• Language: English; Japanese
• Published: 24.10.2019
• Subjects: CINEMATOGRAPHY; CORRECTION OF TYPOGRAPHICAL ERRORS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; MAGNETOGRAPHY; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

To provide an image processing apparatus capable of outputting color characters conspicuously in monochromatic output of a color image.SOLUTION: An image processing apparatus comprises: an image data acquisition unit which acquires color image data; a region determination unit which separates a character image region of the color image data into a black character image region of black and a color character image region of colors other than black; and an image processing unit which performs predetermined image processing on an image of the color image data, wherein the image processing unit extracts an edge region, varying in image density, of the color character image region, and performs processing for emphasizing pixels of the color character image region including the edge region more than pixels of the black character image region.SELECTED DRAWING: Figure 8 【課題】カラー画像のモノクロ出力において、色文字を目立つように出力することができる画像処理装置を提供する。【解決手段】カラー画像データを取得する画像データ取得部と、前記カラー画像データの文字画像領域を黒色の黒文字画像領域および黒色以外の色の色文字画像領域に分離する領域判別部と、前記カラー画像データの画像に予め定められた画像処理を行う画像処理部とを備え、前記画像処理部は、前記色文字画像領域の画像濃度が変化するエッジ領域を抽出し、前記エッジ領域を含む前記色文字画像領域の画素を前記黒文字画像領域の画素より強調する処理を行うことを特徴とする画像処理装置。【選択図】図８