Patent Number: 7,613,317

Title: Image processing apparatus, image processing method, computer program and computer readable storage medium

Abstract: There is provided a message processing apparatus including an image inputting unit for inputting a document image, an extracting unit for extracting a character image from the input document image, and an embedding unit for embedding watermark message by correcting a density value of the extracted character image.

Inventors: Lu; Ling (Kawasaki, JP)

Assignee: Canon Kabushinki Kaisha

International Classification: G06K 9/00 (20060101)

Expiration Date: 1/03/02017