Primax Electronics Ltd.

Sheng-Ping Wang

Ying-Jieh Huang

Tung-Hsuan Pai

Chih-Ping Chang

Tzu-Hung Cheng

Chang-Yung Feng

Sheng-Ling Huang

Po-Yu Peng

An image pickup system includes a display screen, an image pickup device and a positioning program. The image pickup device is used for shooting a document. The display screen is used for showing a positioning mark. When the document is moved and a pre-shot document image is aligned with the positioning mark, the image pickup device is activated by the positioning program to shoot the document, thereby obtaining a document image.

Image pickup system

A method of embedding information in an input image, wherein the information includes a plurality of characters, includes: utilizing a processing circuit to receive the information and convert each character included in the information into a corresponding symbol according to a conversion look-up table; setting a position of the corresponding symbol of each character in a data block according to a sequence look-up table to generate the data block; and adding at least the data block to the input image.

Method of embedding information in input image, method of extracting information from input image, and related apparatus

An image pickup system includes a base, a frame, an image pickup device, a receiving structure, a marking element and a switching element. The frame is connected to the base. The image pickup device is disposed on the frame. The receiving structure is disposed in the base. The frame is rotatable with respect to the base, so that the image pickup device is moved to an optimal shooting position. The marking element indicates that the image pickup device is at the optimal shooting position. When the switching element is triggered, the target object placed in the receiving structure will be shot by the image pickup device.

The present invention relates to an image data luminance compensating method and a sheet-feeding scanning apparatus using such an image data luminance compensating method. According to the reference luminance value change of the reference background strip before and after the current document passes through the scan operating region, the luminance gain associated with compensation of the image data of the next document is determined.

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Taipei, Taiwan

Sheng-Ping Wang