According to the reviewer’s comment, we modified and added some keywords as follows: We replaced “Keywords: VVC; HEVC; video coding; transform; computational complexity” With “Keywords: VVC (Versatile Video Coding), HEVC (High Efficiency Video Coding, Linear Inverse Transform, computational complexity, DCT (Discrete Cosine Transform), Discrete Sine Transform (DST), BD-rate”
We included the following sentence and Equation (14) on page 4: “For an (n×m) transform block which has N non-zero coefficients, the total number of additions in the proposed inverse transform using linearity is computed in Equation (14), even though Equation (14) is not used in the proposed method: We included the following Table 3 and 4 and sentences on page 6: Table 3.