A Modified Dai–Liao Conjugate Gradient Method with a New Parameter for Solving Image Restoration Problems

Algorithm 1

YWLDL algorithm.

	Step 0: choose an initial point , , , , . Set , .
	Step 1: stop if .
	Step 2: determine a stepsize satisfying the following line search by [4]:
	and
	where , , and .
	Step 3: let .
	Step 4: if , then the modified DL algorithm stops.
	Step 5: calculate the search direction by (27).
	Step 6: set k: = k + 1 and go to step 3.