1. An image compression apparatus, comprising:
a tile size determiner that determines a size of a rectangular tile for each component of a still image having a plurality of components, said size being determined arbitrarily;
an image divider that divides the still image using the rectangular tiles, the sizes of said rectangular tiles being determined by said tile size determiner; and
an image compression processor that performs a compression process on the still image divided by said image divider,
wherein the tile size determiner includes a part that determines borders of the rectangular tiles for each of the components such that the borders do not overlap with a horizontal line and a vertical line included in the still image.
2. The image compression apparatus as claimed in claim 1, wherein the image compression processor includes a two-dimensional reversible discrete wavelet transformer, a quantization part and an entropy coder, and performs a compression process on the still image divided by the image divider.
3. An image decompression apparatus decompressing a compressed image compressed by the image compression apparatus as claimed in claim 1, comprising:
an image decompression processor that decompresses the compressed image based on information of the rectangular tiles included in the compressed image, the sizes of said rectangular tiles being determined by the tile size determiner.
4. The image decompression apparatus as claimed in claim 3, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and an inverse discrete cosine transformer.
5. The image decompression apparatus as claimed in claim 3, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and a two-dimensional reversible discrete wavelet inverse transformer.
6. An image compression apparatus, comprising:
a tile size determiner that determines a size of a rectangular tile for each component of a still image having a plurality of components, said size being determined arbitrarily;
an image divider that divides the still image using the rectangular tiles, the sizes of said rectangular tiles being determined by said tile size determiner; and
an image compression processor that performs a compression process on the still image divided by said image divider,
wherein the tile size determiner includes a part that determines borders of the rectangular tiles such that the borders of at least one of the components do not match a horizontal line and a vertical line included in the still image.
7. The image compression apparatus as claimed in claim 6, wherein the image compression processor includes a two-dimensional reversible discrete wavelet transformer, a quantization part and an entropy coder, and performs a compression process on the still image divided by the image divider.
8. The image decompression apparatus decompressing a compressed image compressed by the image compression apparatus as claimed in claim 6, comprising:
an image decompression processor that decompresses the compressed image based on information of the rectangular tiles included in the compressed image, the sizes of said rectangular tiles being determined by the tile size determiner.
9. The image decompression apparatus as claimed in claim 8, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and an inverse discrete cosine transformer.
10. The image decompression apparatus as claimed in claim 8, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and a two-dimensional reversible discrete wavelet inverse transformer.
11. An image compression apparatus, comprising:
a tile size determiner that determines a size of a rectangular tile for each component of a still image having a plurality of components, said size being determined arbitrarily;
an image divider that divides the still image using the rectangular tiles, the sizes of said rectangular tiles being determined by said tile size determiner; and
an image compression processor that performs a compression process on the still image divided by said image divider,
wherein the plurality of components include a R (red) component, a G (green) component and a B (blue) component, and the tile size determiner includes a part that determines borders of the rectangular tiles such that at least the borders of the rectangular tiles in the G component do not match a horizontal line and a vertical line included in the still image.
12. The image compression apparatus as claimed in claim 11, wherein the image compression processor includes a two-dimensional reversible discrete wavelet transformer, a quantization part and an entropy coder, and performs a compression process on the still image divided by the image divider.
13. The image decompression apparatus decompressing a compressed image compressed by the image compression apparatus as claimed in claim 11, comprising:
an image decompression processor that decompresses the compressed image based on information of the rectangular tiles included in the compressed image, the sizes of said rectangular tiles being determined by the tile size determiner.
14. The image decompression apparatus as claimed in claim 13, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and an inverse discrete cosine transformer.
15. The image decompression apparatus as claimed in claim 13, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and a two-dimensional reversible discrete wavelet inverse transformer.
16. An image compression apparatus, comprising:
a tile size determiner that determines a size of a rectangular tile for each component of a still image having a plurality of components, said size being determined arbitrarily;
an image divider that divides the still image using the rectangular tiles, the sizes of said rectangular tiles being determined by said tile size determiner; and
an image compression processor that performs an irreversible compression process on the still image divided by said image divider,
wherein the plurality of components include a Y component, a U component and a Y component, and the tile size determiner includes a part that determines borders of the rectangular tiles such that at least the borders of the rectangular tiles in the Y component do not match a horizontal line and a vertical line included in the still image.
17. The image compression apparatus as claimed in claim 16, wherein the image compression processor includes a two-dimensional reversible discrete wavelet transformer, a quantization part and an entropy coder, and performs a compression process on the still image divided by the image divider.
18. The image decompression apparatus decompressing a compressed image compressed by the image compression apparatus as claimed in claim 16, comprising:
an image decompression processor that decompresses the compressed image based on information of the rectangular tiles included in the compressed image, the sizes of said rectangular tiles being determined by the tile size determiner.
19. The image decompression apparatus as claimed in claim 18, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and an inverse discrete cosine transformer.
20. The image decompression apparatus as claimed in claim 18, wherein the image decompression processor includes an entropy decoder, a reverse quantization part and a two-dimensional reversible discrete wavelet inverse transformer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A connector having a connector housing with opposite front and rear ends and at least one cavity extending between the front and rear ends, the cavity being configured for receiving a terminal fitting from behind and along an insertion direction, wherein:
the connector housing being divided into an inner housing and an outer housing into which the inner housing is mountable in a mounting direction from the front; and
a receiving portion in the outer housing engageable with a lock in the inner housing to hold the inner housing undetachably, the receiving portion having a locking surface for engaging the lock and being exposed rearwardly to outside through the cavity, wherein the lock also serves as at least a part of an inner wall of the cavity while being engaged with the receiving portion.
2. The connector of claim 1, wherein a retainer is mountable to the inner housing, the retainer having a locking section for locking the terminal fitting in the inner housing.
3. The connector of claim 2, wherein the retainer can be positioned in a first position, where insertion of the terminal fitting is permitted, and in a second position, where the terminal fitting is locked to the inner housing.
4. The connector of claim 3, wherein the locking section forms at least part of an inner wall of the cavity when the retainer is in the first position.
5. A connector having a connector housing with opposite front and rear ends and at least one cavity extending between the front and rear ends, the cavity being configured for receiving a terminal fitting from behind and along an insertion direction, wherein:
the connector housing being divided into an inner housing and an outer housing into which the inner housing is mountable in a mounting direction from the front; and
a receiving portion in the outer housing engageable with a lock in the inner housing to hold the inner housing undetachably, the receiving portion having a locking surface for engaging the lock and being exposed rearwardly to outside through the cavity, wherein the cavity comprises a large portion at a rear side, a small portion forward of the large portion and a tapered portion therebetween.
6. The connector of claim 5, wherein the lock comprises a slanted surface extending substantially along the tapered portion.