Video processing device

A video processing method for interposing a character signal that indicates a state of a camera or a state of a camera control device for controlling an operation of the camera on a video signal inputted from the camera and for outputting a resulting signal separately from the video signal, the method comprising:

• generating a character signal on the basis of the state of the camera or the state of the camera control device;
• and
• superposing the generated character signal on a least significant bit of a color difference signal of the video signal inputted from the camera;
• reducing the number of pixels of the video signal on which the character signal has been superposed by carrying out a thinning process and an interpolation filtering process on the brightness signal and the color difference signal excluding the least significant bit, where the thinning process is carried out while the interpolation filtering process is not carried out on the least significant bit of the color difference signal in the video signal;
• and
• reducing the number of pixels of the video signal to different numbers of pixels downstream from the character signal superposing unit.

A computer readable storage medium storing therein a video processing program which, when executed by a computer, causes the computer to perform a video processing method for interposing a character signal that indicates a state of a camera or a state of a camera control device for controlling an operation of the camera on a video signal inputted from the camera and outputting a resulting signal separately from the video signal, the method comprising:

• generating a character signal on the basis of the state of the camera or the state of the camera control device;
• and
• superposing the character signal generated by the character signal generator on the least significant bit of a color difference signal of the video signal inputted from the camera;
• reducing the number of pixels of the video signal on which the character signal has been superposed by carrying out a thinning process and an interpolation filtering process on the brightness signal and the color difference signal excluding the least significant bit, where the thinning process is carried out while the interpolation filtering process is not carried out on the least significant bit of the color difference signal in the video signal;
• and
• reducing the number of pixels of the video signal to different numbers of pixels downstream from the character signal superposing unit.