Image block effect removing method on basis of curvelet transformation

[0026] Such as Figure 4 As shown, the present invention discloses a method for image deblocking effect based on curvelet transform, comprising the following steps:

[0027] Step 1, performing curvelet transform on the target image to obtain scale levels and curvelet coefficients of each level: use curvelet transform to divide the image into scale levels, and analyze the curvelet coefficients of each level;

[0028] Described step one comprises the following steps:

[0029] Step (11), performing curvelet transform on the target image; including dividing the image into a coarse layer (Coarse Layer), a detail layer (Detail Layers), and a fine layer (Fine Layer) by curvelet transform.

[0030] Assuming that the image size is N×N, the number of scale levels divided by the curvelet coefficients is:

[0031] scale=log 2 (N)-3

[0032] The curvelet coefficient is C{j}{l}(k1, k2), where j represents the scale, l represents the direction, and (k1, k2) represents the coordinates of ...