| 1. An image data reducing device for image data composed of a plurality of components, the image data having data corresponding
one-to-one to each pixel with respect to a given component among the plurality of components, and having data common to a
plurality of pixels with respect to the other components, the image data reducing device, comprising:
a reduced image data generating circuit that receives input image data, the input image data being configured such that data
of each component of the plurality of components has a series relationship with each other, the reduced image data generating
circuit generating reduced image data so as to output the reduced image data; and
an output control signal generating circuit that generates an output control signal that controls whether each component of
the input image data is output or not based on a decimation pattern that is determined depending on a format of the input
image data and a reduction ratio, the reduced image data generating circuit including a switching circuit that controls a
presence of output for each component of the input image data being input in series based on the output control signal.
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