Image processor, image reading device, image forming apparatus, information acquisition system, image processing method, and non-transitory recording medium

An image processing method executed by an image processor, the method comprising:

• receiving an image of an object:
• having:
• a first width in a transverse direction;
• and
• a length in a conveyance direction orthogonal to the transverse direction:
• conveyed in the conveyance direction;
• and
• guided by a guide having a second width in the transverse direction;
• detecting a skew of the object based on the image of the object;
• obtaining a difference between the first width of the object and the second width of the guide in the transverse direction;
• and
• determining whether to correct the skew of the image based on the difference obtained.

A non-transitory recording medium carrying computer readable codes which, when executed by a computer system, cause the computer system to carry out control processing of:

• receiving an image of an object:
• having:
• a first width in a transverse direction;
• and
• a length in a conveyance direction orthogonal to the transverse direction:
• conveyed in the conveyance direction;
• and
• guided by a guide having a second width in the transverse direction;
• detecting a skew of the object based on the image of the object;
• obtaining a difference between the first width of the object and the second width of the guide in the transverse direction;
• and
• determining whether to correct the skew of the image based on the difference obtained.