Qr code processing method and apparatus thereof

A processing method of quick response code (QR code), for converting an input image into a QR code according to the input image and finder pattern position information of the QR code, the QR code comprising a plurality of image blocks, the processing method comprising:

• a timing pattern searching procedure, comprising:
• setting a plurality of searching axes among a plurality of finder patterns of the QR code;
• for each searching axis:
• applying a mask to derive a luminance information of the searching axis;
• and
• deriving a maximum image block number corresponding to the searching axis according to the luminance information;
• determining a plurality of timing patterns according to a plurality of maximum image block numbers respectively corresponding to the searching axes;
• and
• an image block adjusting procedure, for selectively adjusting a position of each image block of the QR code according to the finder patterns and the timing patterns of the QR code.

A processing apparatus of quick response code (QR code), comprising:

• an edge processing module, for converting an original image to derive a binarized input image;
• a QR code positioning module, coupled to the edge processing module, for deriving position information of a QR code from the input image, comprising:
• a group searching element, for deriving a plurality of finder pattern groups complying with a finder pattern of the QR code, comprising:
• a capture circuit, for deriving a plurality of luminance groups according to a luminance of each pixel within the input image;
• a determining circuit, coupled to the capture circuit, for identifying the finder pattern groups complying with the finder pattern of the QR code according to each center point of each luminance group among the luminance groups;
• and
• a finder pattern positioning circuit, coupled to the determining circuit, for deriving position information of each finder pattern group of the finder pattern groups;
• and
• a tag searching element, coupled to the group searching element, for deriving the position information of the QR code according to the position information of the finder pattern groups;
• and
• a projection modification module, coupled to the tag searching element, for converting the original image into a modified image according to the position information of the QR code.

A processing apparatus of quick response code (QR code), for converting an input image into a QR code according to the input image and finder pattern position information of the QR code, the QR code comprising a plurality of image blocks, the processing apparatus comprising:

• a timing pattern searching module, comprising:
• a searching axis circuit, for setting a plurality of searching axes among a plurality of finder patterns of the QR code;
• a mask circuit, coupled to the searching axis circuit, where for each searching axis, the mask circuit applies a mask to derive a luminance information of the searching axis and derives a maximum image block number corresponding to the searching axis according to the luminance information, and
• a determining circuit, for determining a plurality of timing patterns according to a plurality of maximum image block numbers respectively corresponding to the searching axes;
• and
• an image block adjusting module, coupled to the timing pattern searching module, for selectively adjusting a position of each image block of the QR code according to the finder patterns and the timing patterns of the QR code.