DINOSARC: Color Features Based on Selective Aggregation of Chromatic Image Components for Wireless Capsule Endoscopy

Algorithm 1

Selective aggregation of chromatic image components (SARC).

	Input: Images Ic (M × N), c = a, b
	Output: Image ISARC
(1)	Compute histogram Hc of images Ic,
(2)	L = length (Hc);
(3)	//Calculate the first and second derivatives of Hc
(4)	// first rate
(5)
(6)
(7)
(8)
(9)	//denote the max values of value field
(10)
(11)	For each do
(12)	If then
(13)	If then
(14)	End For
(15)	⟵ Normalize ; //Enhance contrast
(16)	//Non-maxima filtering
(17)	For each in do
(18)	temp[] ⟵ n × n neighborhood centered at
(19)	For i = 0 to n × n do
(20)	If  <  then  = 0;
(21)	End For
(22)	//Temp is matrix with odd number of rows and columns
(23)	If then temp = 0; ;
(24)	End For
(25)