Signal transmission device and signal transmission method

A signal transmission method, comprising:

• receiving, by a first processor, an image signal;
• determining, by the first processor, a quantization error based on a black-level error amount and a clamp correction amount of the image signal, wherein the black-level error amount is associated with a black level of the image signal, and the clamp correction amount is based on the black-level error amount;
• notifying, by the first processor, a stage subsequent to a bit precision constraint region of the quantization error generated in a quantization process on a signal to be transmitted via the bit precision constraint region, wherein the bit precision constraint region is a region where a bit precision constraint occurs;
• receiving, by a second processor, the quantization error;
• and
• executing, by the second processor based on the received quantization error, an inverse quantization process on the signal transmitted via the bit precision constraint region.

A non-transitory computer-readable medium having stored thereon, computer executable instructions, which when executed by a computer, cause the computer to execute operations, the operations comprising:

• receiving, by a first processor, an image signal;
• determining, by the first processor, a quantization error based on a black-level error amount and a clamp correction amount of the image signal, wherein the black-level error amount is associated with a black level of the image signal, and the clamp correction amount is based on the black-level error amount;
• notifying, by the first processor, a stage subsequent to a bit precision constraint region of the quantization error generated in a quantization process on a signal to be transmitted via the bit precision constraint region, wherein the bit precision constraint region is a region where a bit precision constraint occurs;
• receiving, by a second processor, the quantization error;
• and
• executing, by the second processor based on the received quantization error, an inverse quantization process on the signal transmitted via the bit precision constraint region.