Projector device, projecting method and recording medium in which projection control program is recorded

1. A projector device comprising:

a track detection unit that detects a track designated by an optical pointer on a projected image;

a region designating unit that designates a specific region based on the track detected by the track detection unit;

a determining unit that determines a length as a reference for enlargement of an image portion defined within the region designated by the region designating unit;

an image enlarging unit that enlarges the image portion in the region based on the length as the reference determined by the determining unit and a size of an entire image; and

an enlarged image projecting unit that projects the enlarged image enlarged by the image enlarging unit.

2. The projector device according to claim 1 , further comprising a shooting unit that shoots the projected image;

wherein the track detection unit detects the track designated by the optical pointer on the image shot by the shooting unit.

3. The projector device according to claim 1 , wherein the region designating unit designates a rectangular frame based on the track detected by the track detection unit.

4. A projector device comprising:

a position designating unit that designates positions of at least two points on a projected image;

a setting unit that sets a region having a configuration which is based on the points designated by the position designating unit;

a determining unit that determines a length of a reference for enlargement of an image portion defined within the region having the configuration based on the designated points set by the setting unit;

an image enlarging unit that enlarges the image portion in the region having the configuration based on the designated points, based on the length of the reference determined by the determining unit and a size of an entire image; and

an enlarged image projecting unit that projects the enlarged image enlarged by the image enlarging unit.

5. The projector device according to claim 4 , wherein the determining unit determines the length based on a side of a smaller zooming ratio for the enlargement of the image portion by the image enlarging unit.

6. The projector device according to claim 4 , further comprising a reference setting unit that sets a side to be used as a reference for enlargement of the image portion by the image enlarging unit,

wherein the determining unit determines the side set by the reference setting unit as a reference for enlargement of the image portion.

7. The projector device according to claim 4 , wherein the position designating unit includes:

a first designating unit that designates a position of a first point;

a first point determining unit that determines the position of the first point designated by the first designating unit;

a second designating unit that designates a position of a second point; and p 1 a second point determining unit that determines the position of the second point designated by the second designating unit;

wherein the two points determined based on both of the first point and second point entered by the first point determining unit and the second point determining unit are set as a designated position.

8. The projector device according to claim 4 , wherein the position designating unit designates the position of the two points indicated by the laser beam on the projected image.

9. The projector device according to claim 8 , further comprising a shooting unit that shoots the projected image;

wherein the position designating unit detects the position of the two points indicated by the laser beam on the image shot by the shooting unit.

10. The projector device according to claim 4 , wherein the setting unit sets a rectangular frame having vertexes of a diagonal coincide with the two points designated by the position designating unit.