Discrete Fractional COSHAD Transform and Its Application

Table 2

Performance comparison between the proposed transforms and the known algorithms for image “Lena”.

Methods	𝐵=8, Cr = 1 : 2		𝐵=16, Cr = 1 : 2		𝐵=8, Cr = 1 : 8		𝐵=16, Cr = 1 : 8
	𝑚=2	𝑚=3	𝑚=2	𝑚=3	𝑚=2	𝑚=3	𝑚=2	𝑚=3
Q-COSHAD	0.9778	0.9801	0.9866	0.9875	0.7974	0.8160	0.8814	0.8832
Q-FrCOSHAD	0.9761	0.9768	0.9861	0.9869	0.7891	0.7926	0.8781	0.8798
Q-DCT	0.9803		0.9887		0.8162		0.8975
Q-DHT	0.9754		0.9859		0.7881		0.8766
Q-Hadamard	0.9751		0.9853		0.7811		0.8720