Image processing device, image processing program and image processing method, and image transmission/reception system and image transmission/reception method

An image processing program for causing a computer to execute the steps of:

• executing filtering processing to generate first image data by performing filtering on input image data;
• executing convolution processing to generate second image data by reading a filter coefficient stored in a filter coefficient storage unit and performing a convolution calculation on the first image data;
• executing division processing to generate third image data by dividing the first image data by the second image data;
• and
• executing multiplication processing to generate output image data by multiplying the third image data by the first image data.

An image processing method comprising the steps of:

• executing filtering processing to generate first image data by performing filtering on input image data;
• executing convolution processing to generate second image data by reading a filter coefficient stored in a filter coefficient storage unit and performing a convolution calculation on the first image data;
• executing division processing to generate third image data by dividing the first image data by the second image data;
• and
• executing multiplication processing to generate output image data by multiplying the third image data by the first image data.

An image transmission/reception system comprising:

• a transmitter for transmitting image data;
• and
• a receiver for receiving the image data and processing the image data, wherein
• the transmitter includes transmission image generating means for generating transmission image data having a reduced data amount from original image data, and
• the receiver includes:
• filter coefficient storing means storing a filter coefficient;
• means for executing filtering processing to generate first image data by performing filtering on input image data;
• means for executing convolution processing to generate second image data by performing a convolution calculation on the first image data using the filter coefficient stored in the filter coefficient storing means;
• means for executing division processing to generate third image data by dividing the first image data by the second image data;
• and
• means for executing multiplication processing to generate output image data by multiplying the third image data by the first image data.

An image transmission/reception method employed in an image transmission/reception system having a transmitter for transmitting image data and a receiver for receiving the image data and processing the image data, the method comprising the steps of:

• the transmitter executing the step of generating transmission image data having a reduced data amount from original image data, and the receiver executing filtering processing to generate first image data by performing filtering on input image data;
• the receiver executing convolution processing to generate second image data by reading a filter coefficient stored in a filter coefficient storage unit and performing a convolution calculation on the first image data;
• the receiver executing division processing to generate third image data by dividing the first image data by the second image data;
• and
• the receiver executing multiplication processing to generate output image data by multiplying the third image data by the first image data.