Code reader device and recording medium

Abstract

A code reader device, prior to extracting a code from an image captured by a camera, receives an image size data, and according to the received image size, displays the captured image on the display device so that a code extracting target area is discriminated from a remaining area. A layout of the captured image on a display screen becomes flexible, so that usability for reading the code can be improved.

1 . A code reader device which extracts a code from an image and decodes the code, the image including a code extracting area and a remaining area, the code reader device comprising: 
 an image size specifying unit which specifies a display size of the image, prior to extracting the code from the image; and    a display unit which displays the image with the display size specified by the image size specifying unit such that the code extracting area is distinguished from the remaining area.    
   
   
       2 . The code reader device according to  claim 1 , wherein the display unit displays a frame on a boundary between the code extracting area on and the remaining area.  
   
   
       3 . The code reader device according to  claim 1 , wherein the display unit displays the code extracting area with a first luminance level and the remaining area with a second luminance level.  
   
   
       4 . The code reader device according to  claim 1 , further comprising an angle of view adjusting unit which adjusts an angle of view of the image displayed by the display unit.  
   
   
       5 . The code reader device according to  claim 1 , further comprising an area size specifying unit which specifies a display size of the code extracting area, and wherein the display unit displays the code extracting area based on the display size specified by the area size specifying unit.  
   
   
       6 . The code reader device according to  claim 1 , further comprising an area position specifying unit which specifies a display position of the code extracting area, and wherein the display unit displays the code extracting area based on the display position specified by the area position specifying unit.  
   
   
       7 . A computer readable recording medium to store program instructions for execution on a computer system, which is used as a code reader device which extracts a code from an image and decodes the code, the image including a code extracting area and a remaining area, enabling the computer system to perform: 
 specifying a display size of the image, prior to extracting the code from the image; and    displaying the image with the display size specified by the image size specifying unit such that the code extracting area is distinguished from the remaining area.    
   
   
       8 . A portable terminal which extracts a code from an image and decodes the code, the image including a code extracting area and a remaining area, the portable terminal comprising: 
 an image size specifying unit which specifies a display size of the image, prior to extracting the code from the image; and    a display unit which displays the image with the display size specified by the image size specifying unit such that the code extracting area is distinguished from the remaining area.