Abstract: An image processing apparatus comprises a boundary line position storage section storing position information on boundary lines for dividing an image according to an image data unit into regions; a position information changing section to change the position information on boundary lines; and a dividing section to divide the image data unit into partial image data units corresponding to the respective regions. When a boundary line stored in the boundary line position storage section is across a principal part of the image, the position information changing section changes the position of the boundary line so as not to be across the principal part. When the regions divided by the boundary lines stored in the boundary line position storage section, includes a region that exceeds the maximum print size, the position information changing section changes the positions of boundary lines so that any region does not exceed the maximum print size.

Abstract: An image processing apparatus comprises a boundary line position storage section storing position information on boundary lines for dividing an image according to an image data unit into regions; a position information changing section to change the position information on boundary lines stored in the boundary line position storage section; and a dividing section to divide the image data unit into partial image data units corresponding to the respective regions. When a boundary line stored in the boundary line position storage section is across a principal part of the image according to the image data unit, the position information changing section changes the position of the boundary line so as not to be across the principal part.

Abstract: A method and apparatus for detecting positions which can accurately detect the position of light emitting elements and improves the ease in operation are disclosed. Light emitting elements of a PLZT shutter array that are arranged in one dimension are lighted. A light receiving element transfer system makes a light receiving element or receiver scan along an imaging face of the PLZT shutter array by sampling analog data which has been taken in by the light receiving element 22 so that a data series can be obtained. A minimal value of the data series is determined to be a threshold. Then by comparing the threshold and the data series sequentially from the beginning, the first place where the threshold is exceeded is detected. A maximum value within a searching range of one cycle from this first place is detected. The position of the maximum value is considered to be a beginning or first light emitting element position among the lighted light emitting elements.