Patent ID: 7012716

Claim:
An image recording apparatus comprising: a recording device for recording an image on a recording medium; an image signal converting device for converting signal values of a first image signal of the image into signal values of a second image signal to be used for recording by said recording device by employing an image signal converting condition indicative of a relationship between the first image signal and the second image signal; a density measuring device for reading a test chart image recorded by said recording device by using test chart output image signal values of the second image signal, to acquire measurement density values of the test chart image; a reference density value selecting device for selecting reference density values corresponding to the measurement density values from a target density data, the target density data indicating a relationship between the first image signal and target density of an image recorded on the recording medium, and having a total data number larger than that of the measurement density values acquired by said density measuring device; and a converting condition calculating device for calculating target image signal values of the test chart image based upon the target density data and the reference density values, each of the target image signal values corresponding to each of the measurement density values, and for calculating the image signal converting condition based upon both the target image signal values and the test chart output image signal values, wherein signal values of the first image signal of the image to be recorded are converted into signal values of the second image signal by the image signal converting condition and the image is recorded.