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Maria Kleppestø Mcculloch
IMT4126-BiometricQualityMetrics
Commits
e8f21038
Commit
e8f21038
authored
3 years ago
by
Maria Kleppestø Mcculloch
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Forgot Brisque script
parent
abbacc8b
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e8f21038
function
computeBrisque
()
imgsdir
=
"img/CasiaV2/CasiaSelection/"
;
control
=
1
;
%Determines what dataset to use
% For all subjects
for
i
=
1
:
107
% Determine subject name
if
control
==
1
if
(
i
)
<
10
nr
=
"00000"
+
(
i
);
elseif
(
i
)
<
100
nr
=
"0000"
+
(
i
);
else
nr
=
"000"
+
(
i
);
end
else
if
(
i
)
<
10
nr
=
"0"
+
(
i
);
else
nr
=
""
+
(
i
);
end
end
sub_nr
=
"0"
+
nr
;
% Calculate for each sample
for
j
=
1
:
5
high_path
=
imgsdir
;
path
=
high_path
+
sub_nr
+
'/'
+
'00'
+
(
j
)
+
'.jpg'
;
img
=
imread
(
path
);
quality_scores
(
i
,
j
)
=
brisque
(
img
);
end
end
s
=
size
(
quality_scores
);
tot
=
s
(
1
)
*
s
(
2
);
disp
(
"Mean"
)
disp
(
sum
(
sum
(
quality_scores
))/
tot
)
disp
(
"STD"
)
disp
(
std
(
quality_scores
(:)))
norm_scores
=
Normalize_Q
(
quality_scores
);
disp
(
size
(
norm_scores
))
writematrix
(
norm_scores
,
"data/brisque/quality_values_aug.csv"
)
end
% Nomralize the Brisque values
function
q
=
Normalize_Q
(
qualityscores
)
m
=
1
;
v
=
[
0
,
0
,
0
,
0
,
0
,
0
,
0
];
% Sigmoid
for
i
=
1
:
107
for
j
=
1
:
5
qualityscores
(
i
,
j
)
=
sigmoid
(
qualityscores
(
i
,
j
),
40.690877506627977
,
8.5
);
end
end
% Bin vaules
for
i
=
1
:
107
for
j
=
1
:
5
if
qualityscores
(
i
,
j
)
<
20
m
=
1
;
elseif
qualityscores
(
i
,
j
)
<
40
&&
qualityscores
(
i
,
j
)
>=
20
m
=
2
;
elseif
qualityscores
(
i
,
j
)
<
60
&&
qualityscores
(
i
,
j
)
>=
40
m
=
3
;
elseif
qualityscores
(
i
,
j
)
<
80
&&
qualityscores
(
i
,
j
)
>=
60
m
=
4
;
else
m
=
5
;
end
v
(
m
)
=
v
(
m
)
+
1
;
q
(
i
,
j
)
=
m
;
end
end
disp
(
v
)
end
% Sigmoid
function
q
=
sigmoid
(
x
,
a
,
b
)
q
=
(
1
-
(
1
/
(
1
+
exp
((
a
-
x
)/
b
)
))
)
*
100
;
end
\ No newline at end of file
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