Determination of Knitted Fabric Porosity Using Digital Imaging Techniques

Table 4

Fabric features knitted for testing and validation and percentage of error for the porosity against stitch length of white and black mask images (FKM samples).

Structures	Stitch cam values	Stitch length, (mm)	Porosity (white mask) (%)	Porosity (black mask) (%)	Model values (white mask) (%)	Model values (black mask) (%)	Error (white mask) (%)	Error (black mask) (%)
Plain	19	15.1	55.8	52.1	56.7	52.4	1.61	0.58
	20	15.7	56.9	52.2	57.6	52.8	1.23	0.57
Rib 1 1	19	18.8	54.9	55	52	53.2
	20	19.5	56	55.8	52.3	53.6
Rib 2 1	18	17.6	53	52.7	52.3	54.7		1.97
	19	18.9	53.8	54.7	54.4	58	1.11	6.03
Single jersey	21	19.9	57.6	57.2	59	55	2.43
	22	22	59.9	58.8	62.7	57	4.67