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Cheng Chen authored
New deblocking filter that smooths block boundaries in an estimated direction of object orientation. 1. Select the proper direction for deblocking filtering. Compute abs gradient line by line for the block. Select the direction with least sum of abs gradient. 2. Apply deblocking filtering for a block along this direction. Apply directional filtering for Y, U, V planes. Coding gain on Google test set: % avg_psnr ovr_psnr ssim lowres -0.129 -0.136 -0.277 midres -0.103 -0.127 -0.188 hdres -0.159 -0.158 -0.173 screen_content -0.408 -0.397 -0.695 Change-Id: Ie8646dcc163ace5d8faf5e502b38342d885efc30
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