Image processing apparatus and method

An image processing method, comprising:

• causing, where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also secondary transform, which is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, to be skipped.

An image processing apparatus, comprising:

• a control section configured to cause, where inverse primary transform that is inverse transform to primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also inverse secondary transform, which is inverse transform to secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, to be skipped.

An image processing method, comprising:

• causing, where inverse primary transform that is inverse transform to primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, also inverse secondary transform, which is inverse transform to secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual, to be skipped.

An image processing apparatus, comprising:

• an encoding section configured to skip, where secondary transform is to be performed for a primary transform coefficient obtained by primary transform of a prediction residual that is a difference between an image and a prediction image of the image, encoding of first information relating to skip of the primary transform.

An image processing method, comprising:

• skipping, where secondary transform is to be performed for a primary transform coefficient obtained by primary transform of a prediction residual that is a difference between an image and a prediction image of the image, encoding of first information relating to skip of the primary transform.

An image processing apparatus, comprising:

• a decoding section configured to skip, where inverse secondary transform that is inverse transform to secondary transform that is a transform process for a primary transform coefficient obtained by primary transform of a prediction residual that is a difference between an image and a prediction image of the image is to be performed, decoding of encoded data of first information relating to skip of inverse primary transform that is inverse transform to the primary transform.

An image processing method, comprising:

• skipping, where inverse secondary transform that is inverse transform to secondary transform that is a transform process for a primary transform coefficient obtained by primary transform of a prediction residual that is a difference between an image and a prediction image of the image is to be performed, decoding of encoded data of first information relating to skip of inverse primary transform that is inverse transform to the primary transform.

An image processing apparatus, comprising:

• an encoding section configured to skip, where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, encoding of first information relating to skip of secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual.

An image processing method, comprising:

• skipping, where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, encoding of first information relating to skip of secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual.

An image processing apparatus, comprising:

• a decoding section configured to skip, where inverse primary transform that is inverse transform to primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, decoding of encoded data of first information relating to skip of inverse secondary transform that is inverse transform to secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual.

An image processing method, comprising:

• skipping, where inverse primary transform that is inverse transform to primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image is to be skipped, decoding of encoded data of first information relating to skip of inverse secondary transform that is inverse transform to secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual.

An image processing apparatus, comprising:

• an encoding section configured to skip, where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image, secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual and quantization for a secondary transform coefficient obtained by the secondary transform of the primary transform coefficient are to be skipped, encoding of first information indicative of a substance of the primary transform.

An image processing method, comprising:

• skipping, where primary transform that is a transform process for a prediction residual that is a difference between an image and a prediction image of the image, secondary transform that is a transform process for a primary transform coefficient obtained by the primary transform of the prediction residual and quantization for a secondary transform coefficient obtained by the secondary transform of the primary transform coefficient are to be skipped, encoding of first information indicative of a substance of the primary transform.

An image processing apparatus, comprising:

• a decoding section configured to skip, where dequantization for a quantization transform coefficient level obtained by decoding encoded data, inverse secondary transform for transforming a secondary transform coefficient obtained by the dequantization of the quantization transform coefficient level into a primary transform coefficient and inverse primary transform for transforming the primary transform coefficient into a prediction residual that is a difference between an image and a prediction image of the image are to be skipped, decoding of encoded data of first information relating to a substance of the inverse primary transform.

An image processing method, comprising:

• skipping, where dequantization for a quantization transform coefficient level obtained by decoding encoded data, inverse secondary transform for transforming a secondary transform coefficient obtained by the dequantization of the quantization transform coefficient level into a primary transform coefficient and inverse primary transform for transforming the primary transform coefficient into a prediction residual that is a difference between an image and a prediction image of the image are to be skipped, decoding of encoded data of first information relating to a substance of the inverse primary transform.