| 摘要 |
In a case where an index indicating the magnitude of the variation rate of pixel values within a target pixel block is greater than an index threshold value, weaker block noise strength is calculated compared with a case where the index is smaller than the index threshold value; and in a case where the calculated block noise strength is greater than a strength threshold value, a stronger smoothing process is carried out compared with a case where block noise strength is less than the strength threshold value. |
