Digital camera and method of image processing
View Patent ↗A digital camera includes a first CPU 21 and a second CPU 22 . The first CPU 21 determines an operation of a release button 7 which instructs to photograph an object, and a photographing request is issued when the release button 7 is operated. On the other hand, the second CPU 22 photographs the object by driving a CCD imager 1 when the photographing request is issued, and stores image data of the object photographed into an SDRAM 4 in a compressed state. The second CPU 22 further records into a memory card 4 compressed image data stored in the SDRAM 4 predetermined amount by predetermined amount, and determines whether or not the photographing request is issued every time that a recording of the predetermined amount is completed.
1. A digital camera, comprising:
an instruction key for instructing to photograph an object;
a first CPU having a register which carries out a first determination process for repeatedly determining whether or not said instruction key is operated by checking the setting value of said register, and an issuing process for issuing a photographing request when a result of said first determination process is changed from a negative result to an affirmative result; and
a second CPU which carries out a photographing process for photographing the object, a storing process for storing into a buffer memory image data obtained by said photographing process, a recording process for recording the image data stored in said buffer memory by said storing process into a recording medium every partial amount which is smaller than a data amount of one screen, and a second determination process for determining whether or not the photographing request is issued by said issuing process every time that a recording of the partial amount by said recording process is completed, wherein said photographing process includes a process of photographing the object when a result of said second determination process is affirmative.
2. A digital camera according to claim 1 , further comprising a selection key for selecting a specific photographing mode, wherein said second CPU carries out said second determination process when said specific photographing mode is selected.
3. A digital camera according to claim 1 or 2 , wherein said second CPU further carries out an acquiring process for acquiring an initiative when the result of said second determination process is affirmative, and an applying process for applying said initiative to said first CPU after said storing process is completed, and said first CPU carries out said first determination process and said issuing process when said initiative is applied.
4. A digital camera according to any of claims 1 or 2 , wherein said storing process is a process of storing the image data into said buffer memory in a compressed state.
5. A digital camera according to any of claims 1 or 2 , wherein said recording medium is detachable.
6. An image processing method of a digital camera provided with a first CPU having a register and a second CPU, wherein
said first CPU carries out the steps of (a 1 ) repeatedly determining whether or not an instruction key for instructing to photograph an object is operated by checking the setting value of said register, and (b 1 ) issuing a photographing request when a determination result of said step (a 1 ) is changed from a negative result to an affirmative result, and
said second CPU carries out the steps of (a 2 ) photographing the object, (b 2 ) storing image data obtained by said step (a 2 ) into a buffer memory, (c 2 ) recording into a recording medium the image data stored in said buffer memory by said step (b 2 ) every partial amount which is smaller than a data amount of one screen, and (d 2 ) determining whether or not the photographing request is issued by said step (b 1 ) every time that a recording of the partial amount is completed, wherein said step (a 2 ) includes a step of photographing the object when a determination result of said step (d 2 ) is affirmative.