In this affiliate, the task of providing a desired condensation ratio (CR) is thought-out for the lossy compression of color figures by better portable drawings (BPG) encoder. This encoder is characterized by many benefits distinguished to other new encoders according to rate-deformity performance and additional important conveniences. However, the produced CR for a likely value of a limit that controls compression (PCC) for the considered encoder changes in very wide limits contingent upon image content and the plan the original image is bestowed. In practice, it can be asked to provide a requested CR for color images compacted by BPG. We show that this can be finished using a currently proposed moving feet and body to music method established average rate-distortion curves and PCC cleansing at the second step. The applicability of two together-step approach to providing a desired CR is resolved and proven for the layouts 4:2:0, 4:2:2, and 4:4:4. It is demonstrated that, on account of the second step, the accuracy of providing a asked CR radically advances. The variance of the leftover errors of the given CR is decreased tens of occasions. It is also proved that accuracy depends on a asked CR and the variance of leftover errors is larger for the best desired CR. Some other possessions of the residual wrongs are studied. Two sets of test color figures are exploited in our studies. The first set is used to acquire the average dependence of CR on PCC and catch an idea of the veracity of the proposed plan. The second set is employed to confirm the method’s depiction. It is shown that the results for two together sets are in good agreement.
Author(s) Details:
Vladimir Lukin,
National Aerospace University, Kharkov, Ukraine.
Fangfang Li,
Nanchang Hangkong University, Nanchang, China.
Please see the link here: https://stm.bookpi.org/ACST-V1/article/view/11862
Keywords: Color images, lossy compression, better portable graphics encoder, accuracy improvement, compression ratio
