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