| 1 |
On Mon, 2007-11-12 at 15:46 -0500, Willie Wong wrote: |
| 2 |
> On Mon, Nov 12, 2007 at 02:17:32PM -0600, Michael Sullivan wrote: |
| 3 |
> > The background of the image looks green to me (0, 255, 0), but identify |
| 4 |
> > claims it's white. Is there a way I can know for sure without having to |
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> > go through all the RGB codes? The convert created BMP's won't open in |
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> > gimp.... |
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> > |
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> I don't think identify is THAT good. :) |
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> |
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> I am pretty sure the "background" part is an artifact of the identify |
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> program, and not actually any information in the bmp file. AFAIK, the |
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> Windows BMP file format is just that: bitmaps. It does not store |
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> additional information such as the background color. |
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> |
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> I think the problem is that you converted from a format (gif) that stores |
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> information about backgrounds to one (bmp) that doesn't, and therefore |
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> the information got lost. |
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> |
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> If you try identify on the originals, you will probably pick up the |
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> correct colors. |
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> |
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> W |
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> -- |
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> Willie W. Wong wwong@××××××××××××××.edu |
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> 408 Fine Hall, Department of Mathematics, Princeton University, Princeton |
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> A mathematician's reputation rests on the number of bad proofs he has given. |
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This is the identify information for the original: |
| 28 |
|
| 29 |
michael@camille ourrpg $ identify -verbose ffight.gif |
| 30 |
Image: /home/michael/ffight.gif |
| 31 |
Format: GIF (CompuServe graphics interchange format) |
| 32 |
Class: PseudoClass |
| 33 |
Geometry: 64x64+0+0 |
| 34 |
Type: PaletteMatte |
| 35 |
Endianess: Undefined |
| 36 |
Colorspace: RGB |
| 37 |
Depth: 8-bit |
| 38 |
Channel depth: |
| 39 |
Red: 8-bit |
| 40 |
Green: 8-bit |
| 41 |
Blue: 8-bit |
| 42 |
Alpha: 1-bit |
| 43 |
Channel statistics: |
| 44 |
Red: |
| 45 |
Min: 0 (0) |
| 46 |
Max: 255 (1) |
| 47 |
Mean: 55.8652 (0.219079) |
| 48 |
Standard deviation: 104.988 (0.411717) |
| 49 |
Green: |
| 50 |
Min: 0 (0) |
| 51 |
Max: 255 (1) |
| 52 |
Mean: 192.945 (0.756648) |
| 53 |
Standard deviation: 98.3791 (0.3858) |
| 54 |
Blue: |
| 55 |
Min: 0 (0) |
| 56 |
Max: 255 (1) |
| 57 |
Mean: 10.8623 (0.0425973) |
| 58 |
Standard deviation: 44.2567 (0.173556) |
| 59 |
Opacity: |
| 60 |
Min: 0 (0) |
| 61 |
Max: 255 (1) |
| 62 |
Mean: 171.079 (0.670898) |
| 63 |
Standard deviation: 119.821 (0.469887) |
| 64 |
Alpha: rgba(0,255,0,1) #00FF0000 |
| 65 |
Histogram: |
| 66 |
2748: ( 0,255, 0,255) #00FF0000 rgba(0,255,0,1) |
| 67 |
668: (255, 57, 0, 0) #FF3900 rgb(255,57,0) |
| 68 |
444: ( 0, 0, 0, 0) #000000 black |
| 69 |
212: (247,214,181, 0) #F7D6B5 rgb(247,214,181) |
| 70 |
24: (255,255,255, 0) #FFFFFF white |
| 71 |
Colormap: 256 |
| 72 |
0: ( 0, 0, 0, 0) #000000 black |
| 73 |
1: ( 0,255, 0,255) #00FF0000 rgba(0,255,0,1) |
| 74 |
2: (247,214,181, 0) #F7D6B5 rgb(247,214,181) |
| 75 |
3: (255, 57, 0, 0) #FF3900 rgb(255,57,0) |
| 76 |
4: (255,255,255, 0) #FFFFFF white |
| 77 |
5: (255,255,255, 0) #FFFFFF white |
| 78 |
6: (255,255,255, 0) #FFFFFF white |
| 79 |
7: (255,255,255, 0) #FFFFFF white |
| 80 |
8: (255,255,255, 0) #FFFFFF white |
| 81 |
9: (255,255,255, 0) #FFFFFF white |
| 82 |
10: (255,255,255, 0) #FFFFFF white |
| 83 |
11: (255,255,255, 0) #FFFFFF white |
| 84 |
12: (255,255,255, 0) #FFFFFF white |
| 85 |
13: (255,255,255, 0) #FFFFFF white |
| 86 |
14: (255,255,255, 0) #FFFFFF white |
| 87 |
15: (255,255,255, 0) #FFFFFF white |
| 88 |
16: (255,255,255, 0) #FFFFFF white |
| 89 |
17: (255,255,255, 0) #FFFFFF white |
| 90 |
18: (255,255,255, 0) #FFFFFF white |
| 91 |
19: (255,255,255, 0) #FFFFFF white |
| 92 |
20: (255,255,255, 0) #FFFFFF white |
| 93 |
21: (255,255,255, 0) #FFFFFF white |
| 94 |
22: (255,255,255, 0) #FFFFFF white |
| 95 |
23: (255,255,255, 0) #FFFFFF white |
| 96 |
24: (255,255,255, 0) #FFFFFF white |
| 97 |
25: (255,255,255, 0) #FFFFFF white |
| 98 |
26: (255,255,255, 0) #FFFFFF white |
| 99 |
27: (255,255,255, 0) #FFFFFF white |
| 100 |
28: (255,255,255, 0) #FFFFFF white |
| 101 |
29: (255,255,255, 0) #FFFFFF white |
| 102 |
30: (255,255,255, 0) #FFFFFF white |
| 103 |
31: (255,255,255, 0) #FFFFFF white |
| 104 |
32: (255,255,255, 0) #FFFFFF white |
| 105 |
33: (255,255,255, 0) #FFFFFF white |
| 106 |
34: (255,255,255, 0) #FFFFFF white |
| 107 |
35: (255,255,255, 0) #FFFFFF white |
| 108 |
36: (255,255,255, 0) #FFFFFF white |
| 109 |
37: (255,255,255, 0) #FFFFFF white |
| 110 |
38: (255,255,255, 0) #FFFFFF white |
| 111 |
39: (255,255,255, 0) #FFFFFF white |
| 112 |
40: (255,255,255, 0) #FFFFFF white |
| 113 |
41: (255,255,255, 0) #FFFFFF white |
| 114 |
42: (255,255,255, 0) #FFFFFF white |
| 115 |
43: (255,255,255, 0) #FFFFFF white |
| 116 |
44: (255,255,255, 0) #FFFFFF white |
| 117 |
45: (255,255,255, 0) #FFFFFF white |
| 118 |
46: (255,255,255, 0) #FFFFFF white |
| 119 |
47: (255,255,255, 0) #FFFFFF white |
| 120 |
48: (255,255,255, 0) #FFFFFF white |
| 121 |
49: (255,255,255, 0) #FFFFFF white |
| 122 |
50: (255,255,255, 0) #FFFFFF white |
| 123 |
51: (255,255,255, 0) #FFFFFF white |
| 124 |
52: (255,255,255, 0) #FFFFFF white |
| 125 |
53: (255,255,255, 0) #FFFFFF white |
| 126 |
54: (255,255,255, 0) #FFFFFF white |
| 127 |
55: (255,255,255, 0) #FFFFFF white |
| 128 |
56: (255,255,255, 0) #FFFFFF white |
| 129 |
57: (255,255,255, 0) #FFFFFF white |
| 130 |
58: (255,255,255, 0) #FFFFFF white |
| 131 |
59: (255,255,255, 0) #FFFFFF white |
| 132 |
60: (255,255,255, 0) #FFFFFF white |
| 133 |
61: (255,255,255, 0) #FFFFFF white |
| 134 |
62: (255,255,255, 0) #FFFFFF white |
| 135 |
63: (255,255,255, 0) #FFFFFF white |
| 136 |
64: (255,255,255, 0) #FFFFFF white |
| 137 |
65: (255,255,255, 0) #FFFFFF white |
| 138 |
66: (255,255,255, 0) #FFFFFF white |
| 139 |
67: (255,255,255, 0) #FFFFFF white |
| 140 |
68: (255,255,255, 0) #FFFFFF white |
| 141 |
69: (255,255,255, 0) #FFFFFF white |
| 142 |
70: (255,255,255, 0) #FFFFFF white |
| 143 |
71: (255,255,255, 0) #FFFFFF white |
| 144 |
72: (255,255,255, 0) #FFFFFF white |
| 145 |
73: (255,255,255, 0) #FFFFFF white |
| 146 |
74: (255,255,255, 0) #FFFFFF white |
| 147 |
75: (255,255,255, 0) #FFFFFF white |
| 148 |
76: (255,255,255, 0) #FFFFFF white |
| 149 |
77: (255,255,255, 0) #FFFFFF white |
| 150 |
78: (255,255,255, 0) #FFFFFF white |
| 151 |
79: (255,255,255, 0) #FFFFFF white |
| 152 |
80: (255,255,255, 0) #FFFFFF white |
| 153 |
81: (255,255,255, 0) #FFFFFF white |
| 154 |
82: (255,255,255, 0) #FFFFFF white |
| 155 |
83: (255,255,255, 0) #FFFFFF white |
| 156 |
84: (255,255,255, 0) #FFFFFF white |
| 157 |
85: (255,255,255, 0) #FFFFFF white |
| 158 |
86: (255,255,255, 0) #FFFFFF white |
| 159 |
87: (255,255,255, 0) #FFFFFF white |
| 160 |
88: (255,255,255, 0) #FFFFFF white |
| 161 |
89: (255,255,255, 0) #FFFFFF white |
| 162 |
90: (255,255,255, 0) #FFFFFF white |
| 163 |
91: (255,255,255, 0) #FFFFFF white |
| 164 |
92: (255,255,255, 0) #FFFFFF white |
| 165 |
93: (255,255,255, 0) #FFFFFF white |
| 166 |
94: (255,255,255, 0) #FFFFFF white |
| 167 |
95: (255,255,255, 0) #FFFFFF white |
| 168 |
96: (255,255,255, 0) #FFFFFF white |
| 169 |
97: (255,255,255, 0) #FFFFFF white |
| 170 |
98: (255,255,255, 0) #FFFFFF white |
| 171 |
99: (255,255,255, 0) #FFFFFF white |
| 172 |
100: (255,255,255, 0) #FFFFFF white |
| 173 |
101: (255,255,255, 0) #FFFFFF white |
| 174 |
102: (255,255,255, 0) #FFFFFF white |
| 175 |
103: (255,255,255, 0) #FFFFFF white |
| 176 |
104: (255,255,255, 0) #FFFFFF white |
| 177 |
105: (255,255,255, 0) #FFFFFF white |
| 178 |
106: (255,255,255, 0) #FFFFFF white |
| 179 |
107: (255,255,255, 0) #FFFFFF white |
| 180 |
108: (255,255,255, 0) #FFFFFF white |
| 181 |
109: (255,255,255, 0) #FFFFFF white |
| 182 |
110: (255,255,255, 0) #FFFFFF white |
| 183 |
111: (255,255,255, 0) #FFFFFF white |
| 184 |
112: (255,255,255, 0) #FFFFFF white |
| 185 |
113: (255,255,255, 0) #FFFFFF white |
| 186 |
114: (255,255,255, 0) #FFFFFF white |
| 187 |
115: (255,255,255, 0) #FFFFFF white |
| 188 |
116: (255,255,255, 0) #FFFFFF white |
| 189 |
117: (255,255,255, 0) #FFFFFF white |
| 190 |
118: (255,255,255, 0) #FFFFFF white |
| 191 |
119: (255,255,255, 0) #FFFFFF white |
| 192 |
120: (255,255,255, 0) #FFFFFF white |
| 193 |
121: (255,255,255, 0) #FFFFFF white |
| 194 |
122: (255,255,255, 0) #FFFFFF white |
| 195 |
123: (255,255,255, 0) #FFFFFF white |
| 196 |
124: (255,255,255, 0) #FFFFFF white |
| 197 |
125: (255,255,255, 0) #FFFFFF white |
| 198 |
126: (255,255,255, 0) #FFFFFF white |
| 199 |
127: (255,255,255, 0) #FFFFFF white |
| 200 |
128: (255,255,255, 0) #FFFFFF white |
| 201 |
129: (255,255,255, 0) #FFFFFF white |
| 202 |
130: (255,255,255, 0) #FFFFFF white |
| 203 |
131: (255,255,255, 0) #FFFFFF white |
| 204 |
132: (255,255,255, 0) #FFFFFF white |
| 205 |
133: (255,255,255, 0) #FFFFFF white |
| 206 |
134: (255,255,255, 0) #FFFFFF white |
| 207 |
135: (255,255,255, 0) #FFFFFF white |
| 208 |
136: (255,255,255, 0) #FFFFFF white |
| 209 |
137: (255,255,255, 0) #FFFFFF white |
| 210 |
138: (255,255,255, 0) #FFFFFF white |
| 211 |
139: (255,255,255, 0) #FFFFFF white |
| 212 |
140: (255,255,255, 0) #FFFFFF white |
| 213 |
141: (255,255,255, 0) #FFFFFF white |
| 214 |
142: (255,255,255, 0) #FFFFFF white |
| 215 |
143: (255,255,255, 0) #FFFFFF white |
| 216 |
144: (255,255,255, 0) #FFFFFF white |
| 217 |
145: (255,255,255, 0) #FFFFFF white |
| 218 |
146: (255,255,255, 0) #FFFFFF white |
| 219 |
147: (255,255,255, 0) #FFFFFF white |
| 220 |
148: (255,255,255, 0) #FFFFFF white |
| 221 |
149: (255,255,255, 0) #FFFFFF white |
| 222 |
150: (255,255,255, 0) #FFFFFF white |
| 223 |
151: (255,255,255, 0) #FFFFFF white |
| 224 |
152: (255,255,255, 0) #FFFFFF white |
| 225 |
153: (255,255,255, 0) #FFFFFF white |
| 226 |
154: (255,255,255, 0) #FFFFFF white |
| 227 |
155: (255,255,255, 0) #FFFFFF white |
| 228 |
156: (255,255,255, 0) #FFFFFF white |
| 229 |
157: (255,255,255, 0) #FFFFFF white |
| 230 |
158: (255,255,255, 0) #FFFFFF white |
| 231 |
159: (255,255,255, 0) #FFFFFF white |
| 232 |
160: (255,255,255, 0) #FFFFFF white |
| 233 |
161: (255,255,255, 0) #FFFFFF white |
| 234 |
162: (255,255,255, 0) #FFFFFF white |
| 235 |
163: (255,255,255, 0) #FFFFFF white |
| 236 |
164: (255,255,255, 0) #FFFFFF white |
| 237 |
165: (255,255,255, 0) #FFFFFF white |
| 238 |
166: (255,255,255, 0) #FFFFFF white |
| 239 |
167: (255,255,255, 0) #FFFFFF white |
| 240 |
168: (255,255,255, 0) #FFFFFF white |
| 241 |
169: (255,255,255, 0) #FFFFFF white |
| 242 |
170: (255,255,255, 0) #FFFFFF white |
| 243 |
171: (255,255,255, 0) #FFFFFF white |
| 244 |
172: (255,255,255, 0) #FFFFFF white |
| 245 |
173: (255,255,255, 0) #FFFFFF white |
| 246 |
174: (255,255,255, 0) #FFFFFF white |
| 247 |
175: (255,255,255, 0) #FFFFFF white |
| 248 |
176: (255,255,255, 0) #FFFFFF white |
| 249 |
177: (255,255,255, 0) #FFFFFF white |
| 250 |
178: (255,255,255, 0) #FFFFFF white |
| 251 |
179: (255,255,255, 0) #FFFFFF white |
| 252 |
180: (255,255,255, 0) #FFFFFF white |
| 253 |
181: (255,255,255, 0) #FFFFFF white |
| 254 |
182: (255,255,255, 0) #FFFFFF white |
| 255 |
183: (255,255,255, 0) #FFFFFF white |
| 256 |
184: (255,255,255, 0) #FFFFFF white |
| 257 |
185: (255,255,255, 0) #FFFFFF white |
| 258 |
186: (255,255,255, 0) #FFFFFF white |
| 259 |
187: (255,255,255, 0) #FFFFFF white |
| 260 |
188: (255,255,255, 0) #FFFFFF white |
| 261 |
189: (255,255,255, 0) #FFFFFF white |
| 262 |
190: (255,255,255, 0) #FFFFFF white |
| 263 |
191: (255,255,255, 0) #FFFFFF white |
| 264 |
192: (255,255,255, 0) #FFFFFF white |
| 265 |
193: (255,255,255, 0) #FFFFFF white |
| 266 |
194: (255,255,255, 0) #FFFFFF white |
| 267 |
195: (255,255,255, 0) #FFFFFF white |
| 268 |
196: (255,255,255, 0) #FFFFFF white |
| 269 |
197: (255,255,255, 0) #FFFFFF white |
| 270 |
198: (255,255,255, 0) #FFFFFF white |
| 271 |
199: (255,255,255, 0) #FFFFFF white |
| 272 |
200: (255,255,255, 0) #FFFFFF white |
| 273 |
201: (255,255,255, 0) #FFFFFF white |
| 274 |
202: (255,255,255, 0) #FFFFFF white |
| 275 |
203: (255,255,255, 0) #FFFFFF white |
| 276 |
204: (255,255,255, 0) #FFFFFF white |
| 277 |
205: (255,255,255, 0) #FFFFFF white |
| 278 |
206: (255,255,255, 0) #FFFFFF white |
| 279 |
207: (255,255,255, 0) #FFFFFF white |
| 280 |
208: (255,255,255, 0) #FFFFFF white |
| 281 |
209: (255,255,255, 0) #FFFFFF white |
| 282 |
210: (255,255,255, 0) #FFFFFF white |
| 283 |
211: (255,255,255, 0) #FFFFFF white |
| 284 |
212: (255,255,255, 0) #FFFFFF white |
| 285 |
213: (255,255,255, 0) #FFFFFF white |
| 286 |
214: (255,255,255, 0) #FFFFFF white |
| 287 |
215: (255,255,255, 0) #FFFFFF white |
| 288 |
216: (255,255,255, 0) #FFFFFF white |
| 289 |
217: (255,255,255, 0) #FFFFFF white |
| 290 |
218: (255,255,255, 0) #FFFFFF white |
| 291 |
219: (255,255,255, 0) #FFFFFF white |
| 292 |
220: (255,255,255, 0) #FFFFFF white |
| 293 |
221: (255,255,255, 0) #FFFFFF white |
| 294 |
222: (255,255,255, 0) #FFFFFF white |
| 295 |
223: (255,255,255, 0) #FFFFFF white |
| 296 |
224: (255,255,255, 0) #FFFFFF white |
| 297 |
225: (255,255,255, 0) #FFFFFF white |
| 298 |
226: (255,255,255, 0) #FFFFFF white |
| 299 |
227: (255,255,255, 0) #FFFFFF white |
| 300 |
228: (255,255,255, 0) #FFFFFF white |
| 301 |
229: (255,255,255, 0) #FFFFFF white |
| 302 |
230: (255,255,255, 0) #FFFFFF white |
| 303 |
231: (255,255,255, 0) #FFFFFF white |
| 304 |
232: (255,255,255, 0) #FFFFFF white |
| 305 |
233: (255,255,255, 0) #FFFFFF white |
| 306 |
234: (255,255,255, 0) #FFFFFF white |
| 307 |
235: (255,255,255, 0) #FFFFFF white |
| 308 |
236: (255,255,255, 0) #FFFFFF white |
| 309 |
237: (255,255,255, 0) #FFFFFF white |
| 310 |
238: (255,255,255, 0) #FFFFFF white |
| 311 |
239: (255,255,255, 0) #FFFFFF white |
| 312 |
240: (255,255,255, 0) #FFFFFF white |
| 313 |
241: (255,255,255, 0) #FFFFFF white |
| 314 |
242: (255,255,255, 0) #FFFFFF white |
| 315 |
243: (255,255,255, 0) #FFFFFF white |
| 316 |
244: (255,255,255, 0) #FFFFFF white |
| 317 |
245: (255,255,255, 0) #FFFFFF white |
| 318 |
246: (255,255,255, 0) #FFFFFF white |
| 319 |
247: (255,255,255, 0) #FFFFFF white |
| 320 |
248: (255,255,255, 0) #FFFFFF white |
| 321 |
249: (255,255,255, 0) #FFFFFF white |
| 322 |
250: (255,255,255, 0) #FFFFFF white |
| 323 |
251: (255,255,255, 0) #FFFFFF white |
| 324 |
252: (255,255,255, 0) #FFFFFF white |
| 325 |
253: (255,255,255, 0) #FFFFFF white |
| 326 |
254: (255,255,255, 0) #FFFFFF white |
| 327 |
255: (255,255,255, 0) #FFFFFF white |
| 328 |
Rendering intent: Undefined |
| 329 |
Resolution: 72x72 |
| 330 |
Units: Undefined |
| 331 |
Filesize: 1.1875kb |
| 332 |
Interlace: None |
| 333 |
Background color: black |
| 334 |
Border color: rgb(223,223,223) |
| 335 |
Matte color: grey74 |
| 336 |
Transparent color: rgba(0,255,0,1) |
| 337 |
Page geometry: 64x64+0+0 |
| 338 |
Dispose: Undefined |
| 339 |
Compression: ColorBurn |
| 340 |
Orientation: Undefined |
| 341 |
Signature: |
| 342 |
35337a670266b1d6687c903e52b2cfe0568ef47b2ca46ea59ea0072736dc6a2a |
| 343 |
Tainted: False |
| 344 |
Version: ImageMagick 6.3.5 09/29/07 Q16 http://www.imagemagick.org |
| 345 |
|
| 346 |
It claims that the background is black, but the gif doesn't show a |
| 347 |
background at all, and the BMP shows a green background. Can you see |
| 348 |
anything in the listing that I haven't that will help me to know what |
| 349 |
color I need to set transparent for the BMP? I tried setting (0, 255, |
| 350 |
0, 1) transparent, and it still showed up green. |
| 351 |
|
| 352 |
-- |
| 353 |
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