An image forming apparatus includes an input unit configured to input image data, an image forming unit configured to form an image on a recording material based on the input image data, a reading unit configured to read the image formed on the recording material, and a control unit configured to, based on the input image data and the image read by the reading unit, acquire a plurality of change amounts from the read image, and determine a type of an abnormal image based on a plurality of the acquired change amounts.

An image forming apparatus includes an input unit configured to input image data, an image forming unit configured to form an image on a recording material based on the input image data, a reading unit configured to read the image formed on the recording material, and a control unit configured to, based on the input image data and the image read by the reading unit, acquire a plurality of change amounts from the read image, and determine a type of an abnormal image based on a plurality of the acquired change amounts.

An image processing apparatus and a method thereof for correcting image data in accordance with a feature of the image data, calculates a brightness component of image data and a color difference component of image data, determines whether the image data is a nightscape image or an underexposed image using the calculated brightness component and color difference component, and corrects the image data which has been determined as a nightscape image or an underexposed image.

An image processing apparatus and a method thereof for correcting image data in accordance with a feature of the image data, calculates a brightness component of image data and a color difference component of image data, determines whether the image data is a nightscape image or an underexposed image using the calculated brightness component and color difference component, and corrects the image data which has been determined as a nightscape image or an underexposed image.

An image processing apparatus is provided. The image processing apparatus includes a data receiver, an image specifier, a replacement specifier, and a data generator. The data receiver receives data. The image specifier specifies a first image contained in the data. The replacement specifier specifies replacement data for the first image on the basis of a characteristic of the data. The data generator generates data in which the first image has been replaced with an image represented by the replacement data.

An image processing apparatus is provided. The image processing apparatus includes a data receiver, an image specifier, a replacement specifier, and a data generator. The data receiver receives data. The image specifier specifies a first image contained in the data. The replacement specifier specifies replacement data for the first image on the basis of a characteristic of the data. The data generator generates data in which the first image has been replaced with an image represented by the replacement data.

An image process to be performed on an edge of a character or a line is not performed on pixels included in a mosaic image.

An image process to be performed on an edge of a character or a line is not performed on pixels included in a mosaic image.

An image processing apparatus includes a receiving unit, a generating unit, and a determining unit. The receiving unit receives first image data. The first image data includes a first part corresponding to a manuscript and a second part corresponding to a non-manuscript. The generating unit generates second image data by processing the second part. The determining unit determines whether the manuscript is processed as a monochromatic image or a color image, based on the second image data. The determining unit outputs a result of the determination.

An image processing apparatus includes a receiving unit, a generating unit, and a determining unit. The receiving unit receives first image data. The first image data includes a first part corresponding to a manuscript and a second part corresponding to a non-manuscript. The generating unit generates second image data by processing the second part. The determining unit determines whether the manuscript is processed as a monochromatic image or a color image, based on the second image data. The determining unit outputs a result of the determination.