| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processing method, image processing device, image forming device and inkjet recording device, which correct stripes without generating artifacts in a recording image while suppressing cost increase with a simple structure.SOLUTION: A threshold value matrix used for quantizing process to input image data is read out (S14), abnormal nozzle information is obtained, and mask processing is applied to an abnormal nozzle based on the abnormal nozzle (S12), processing of an pixel to be formed by the abnormal nozzle is excluded and corresponding relation of the nozzle of the threshold value matrix and a threshold value is modified so that the continuity of the pattern of the threshold value matrix is maintained (S16), quantizing process is carried out using the threshold value matrix after modification (S22), and the non-continuity of the pattern of the threshold value matrix by a mask is suppressed, artifacts resulting from lack of a part of the threshold value are suppressed, and the particles of the image are not worsened. |
