Adjusting image data using divided areas

An image processing method, comprising:

• writing image data to an image memory;
• detecting a write line number representing a quantity of lines of the image data written to the image memory;
• generating coordinate information based on inclination information, the coordinate information including a coordinate in a main scanning direction and a coordinate in a sub-scanning direction that represent a position of each of pixels of the image data relative to an output medium onto which the image data is to be output, and the inclination information representing an inclination of the image data in the image memory relative to the output medium;
• detecting, from the coordinate information, a minimum sub-scanning coordinate in each of a plurality of divided areas of the image data divided by a particular division number in the main scanning direction, the minimum sub-scanning coordinate having a minimum value in each divided area of the plurality of divided areas of the image data in the sub-scanning direction of the image data;
• generating first read addresses associated with reading the plurality of divided areas of the image data from the image memory based on the detected minimum sub-scanning coordinate in each divided area of the plurality of divided areas of the image data;
• reading the plurality of divided areas of the image data from the image memory based on the first read addresses;
• detecting a read line number representing a quantity of lines of the image data read from the image memory;
• stopping and starting the reading the plurality of divided areas of the image data based on the write line number, the read line number, and the coordinate information;
• generating write addresses associated with writing the plurality of divided areas of the image data to a memory based on the coordinate information;
• sequentially writing, to the memory, the plurality of divided areas of the image data read in the reading the plurality of divided areas of the image data based on the write addresses;
• generating second read addresses associated with reading the plurality of divided areas of the image data from the memory based on the coordinate information;
• and
• sequentially reading the plurality of divided areas of the image data from the memory based on the second read addresses.

A non-transitory recording medium storing a program that, when executed by a computer, causes the computer to execute an image processing method, the image processing method comprising:

• writing image data to an image memory;
• detecting a write line number representing a quantity of lines of the image data written to the image memory;
• generating coordinate information based on inclination information, the coordinate information including a coordinate in a main scanning direction and a coordinate in a sub-scanning direction that represent a position of each of pixels of the image data relative to an output medium onto which the image data is to be output, and the inclination information representing an inclination of the image data in the image memory relative to the output medium;
• detecting, from the coordinate information, a minimum sub-scanning coordinate in each of a plurality of divided areas of the image data divided by a particular division number in the main scanning direction, the minimum sub-scanning coordinate having a minimum value in each divided area of the plurality of divided areas of the image data in the sub-scanning direction of the image data;
• generating first read addresses for reading the plurality of divided areas of the image data from the image memory based on the detected minimum sub-scanning coordinate in each divided area of the plurality of divided areas of the image data;
• reading the plurality of divided areas of the image data from the image memory based on the first read addresses;
• detecting a read line number representing a quantity of lines of the image data read from the image memory;
• stopping and starting the reading the plurality of divided areas of the image data based on the write line number, the read line number, and the coordinate information;
• generating write addresses for writing the plurality of divided areas of the image data to a memory based on the coordinate information;
• sequentially writing to the memory the plurality of divided areas of the image data read in the reading the plurality of divided areas of the image data based on the write addresses;
• generating second read addresses for reading the plurality of divided areas of the image data from the memory based on the coordinate information;
• and
• sequentially reading the plurality of divided areas of the image data from the memory based on the second read addresses.