Abstract: An image processing apparatus of this invention includes a unit for calculating an average value in a first block pixel area including an objective pixel, a unit for calculating an average value in a second block pixel area including the objective pixel, and a binarization unit for determining, as a binary output of the objective pixel, a binarization result obtained by binarizing the average value in the second block pixel area by the average value in the first block pixel area as a threshold value.

Abstract: An image processing apparatus includes in one version an input device for inputting digital image data, a contour process circuit for emphasizing contour data in the digital image data form the input device, a circuit for smoothing the digital image data from the input device, and an output device for selectively outputting the digital image data input from the input device and subjected to different image processes in different designated areas. Densities of the contour and non-contour data can preferably be controlled independently of each other.

Abstract: An image processing apparatus includes first and second input units for inputting an image data, a memory for storing first image data input by the first or second input unit, and a processor for processing second image data input by the first or second unit using the image data stored in the memory.

Abstract: There is provided an image processing apparatus for modulating a concentration of input image data, comprising: an inputting device to input image data; a RAM to store first image data input by the inputting device; a processing unit to execute a modulating process to at least one area such as a non-rectangular area in second image data input by the inputting device by using the first image data stored in the RAM; and a detector to detect a predetermined color of the second image data. The area is specified by the color detected by the detector. The inputting device includes a CCD for reading an original and generating RGB color component signals. With this apparatus, a texture process is executed to at least one non-rectangular area and the result can be output in a real-time manner.

Abstract: There is disclosed a color image processing apparatus comprising color conversion circuit for converting image data to a desired color, feature extraction circuit for extracting a feature of the image data and image correction circuit for correcting the image data on the basis of the feature extraction circuit, characterized in that a color conversion processing is executed prior to extraction of feature from the image data.