Ch.4 Checking Image Quality
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DRYPRO Vstage MODEL 793 Installation Manual Ver.1.00 2004.11
Chart-B (11 step gray scale)
Film Setting
Max. Density Min. Density
Clear
300
10
Point
Min. Value
Standard Value
Max. Value
(*)100%
none
10
13
90%
34
39
44
80%
63
68
73
70%
92
97
102
60%
121
126
131
50%
150
155
160
40%
179
184
189
30%
208
213
218
20%
237
242
247
10%
266
271
276
0%
295
300
305
Film Setting
Max. Density Min. Density
Blue
300
20
Film Setting
Max. Density Min. Density
Mammography
400
20
Point
Min. Value
Standard Value
Max. Value
100%
15
20
25
90%
43
48
53
80%
71
76
81
70%
99
104
109
60%
127
132
137
50%
155
160
165
40%
183
188
193
30%
211
216
221
20%
239
244
249
10%
267
272
277
0%
295
300
305
Point
Min. Value
Standard Value
Max. Value
100%
15
20
25
90%
53
58
63
80%
91
96
101
70%
129
134
139
60%
167
172
177
50%
205
210
215
40%
243
248
253
30%
281
286
291
20%
319
324
329
10%
357
362
367
(*) 0%
395
400
none
With the exception of values shown with asterisks (*), SMPTE pattern density
values within the st/-0.05D are judged to be normal.