Digital camera capable of embedding an electronic watermark into image data

Abstract

A digital camera has a memory for storing a plurality of programs each to embed a watermark on a digital image data. The digital camera embeds the watermark on the image data according to the program selected by a program selector. In the case of a digital camera capable of selecting whether or not to embed a watermark, the digital camera forcibly controls to embed the watermark if the selection is failed. The digital camera has a processor for processing a digital image data in accordance with one of a plurality of selective data forms, one of the data forms being suitable for a watermark, and another unsuitable. In this case, the digital camera controls the processor to replace the unsuitable data form by the suitable one under the necessity of embedding the watermark on the digital image data.

1 . A digital camera comprising: 
 an imaging device for forming a digital image data of an object;    a processor for getting a first and second picture image data on the basis of the same digital image data from the imaging device; and    an embedding circuit for embedding the watermark on one of the first and second picture image data with the other kept without the watermark.    
   
   
       2 . The digital camera according to  claim 1 , further comprising a memory for storing the first and second picture image data under a specified relationship with each other.  
   
   
       3 . The digital camera according to  claim 1 , further comprising a memory for storing the first and second picture image data, wherein one of the first and second picture image data is stored in the memory with an amount of data different from that of the other.  
   
   
       4 . The digital camera according to  claim 1 , further comprising a memory for storing the picture image data and a selector for selecting whether to store both the first and second picture image data in the memory or to store only a selected one of the first and second picture image data in the memory.  
   
   
       5 . The digital camera according to  claim 1 , further comprising a memory for storing the picture image data and a selector for selecting one of the first and second picture image data to be store in the memory.