Video signal processing apparatus, video signal processing method, and imaging device
AssigneeCanon Kabushiki Kaisha
InventorsZenya Kawaguchi, Yoshihiro Honma, Shin Takagi
Life of this patent
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Abstract
Disclosed is a video signal processing apparatus applicable to various LCD panels. This video signal processing apparatus includes a format converting unit which converts first-format image data into second-format image data, a point sequential converting unit which converts the second-format image data into point sequenced data, a resizing unit which resizes the point sequenced data, a line memory which stores the resized point sequenced data, and an output control unit which controls to continuously read out the point sequenced data from the line memory.
Claims9
An apparatus for processing a video signal, comprising:
- a first resizing unit which resizes first-format image data and outputs first-format image data with a first size which corresponds to a display size for TV monitor;
- a generating unit which generates a composite video signal with the first size from the first-format image data with the first size;
- a format converting unit which converts the first-format image data with the first size into second-format image data with the first size, wherein the second-format image data is RGB data;
- a point sequential converting unit which converts the second-format image data with the first size converted by said format converting unit into point sequenced data with the first size;
- a second resizing unit which resizes the point sequenced data with the first size converted by said point sequential converting unit and outputs the point sequenced data with a second size which corresponds to a display size for a display panel of the apparatus;
- a line memory which stores the resized point sequenced data with the second size output by said second resizing unit;
- and
- an output control unit which controls to continuously read out the point sequenced data with the second size from said line memory,
- wherein
- said point sequential converting unit outputs data of two consecutive points having the same color from the second-format image data which is RGB data, and
- said second resizing unit outputs resized data from the data of the two consecutive points by a linear interpolation calculation.
A method of processing a video signal, comprising steps of:
- resizing first-format image data to output first-format image data with a first size which corresponds to a display size for TV monitor;
- generating a composite video signal with the first size from the first-format image data with the first size;
- converting the first-format image data with the first size into second-format image data with the first size, wherein the second-format image data is RGB data;
- converting the second-format image data with the first size converted in said format converting step into point sequenced data with the first size;
- resizing the point sequenced data with the first size converted in said point sequential converting step to output the point sequenced data with a second size which corresponds to a display size for a display panel of the apparatus;
- storing the resized point sequenced data with the second size output in said resizing step in a line memory;
- and
- controlling to continuously read out the point sequenced data with the second size from the line memory,
- wherein
- said step of converting the second-format image data with the first size converted in said format converting step into point sequenced data with the first size comprises outputting data of two consecutive points having the same color from the second-format data which is RGB data, and
- said step of resizing the point sequenced data with the first size converted in said point sequential converting step to output the point sequenced data with a second size which corresponds to a display size for the apparatus panel comprises outputting resized data from the data of the two consecutive points by a linear interpolation calculation.
Dependencies are inferred from the claim text.