25:
40:
17:
151:, Nikon continued to produce and sell a range of mid-range enthusiast digital cameras using CYGM sensors for a period of approximately 5 years. From the prominent Nikon Coolpix 995 (still used a decade later in specialist applications like microscopy) to the Nikon Coolpix 5700 (the last Nikon camera to use CYGM).
113:
makes measurements more accurate in respect to luminance (that is, taking measurements of how much light there is) but makes it more difficult to determine color information accurately. While 'green' is unaffected, color inaccuracy arises from the fact that the red and blue sensors (as found in the standard
112:
is absorbed by the filters (which typically employ dyes to absorb light within a broad range of wavelengths). The CYGM color filter array differs from the standard Bayer filter by using only a single color-absorbing filter for 3 of the 4 sensors. This produces a broad spectral response and therefore
103:
theory, a 'green' measurement is taken by placing a color filter which absorbs 'red' and 'blue' in front of the light sensor. A 'blue' measurement is taken with a 'green' and 'red' absorbing filter, and a 'red' measurement with a 'blue' and 'green' absorbing filter.
99:, but at the expense of color accuracy. This is because the cyan and yellow components of the colour filter array do not produce a true monochromatic yellow or cyan but are rather modifications of the filters used to absorb 'color'. Under the conventional
120:
While the CYGM filter found widespread adoption in the early years of digital photography, at the time a rival of the now standard Bayer filter, it is now considered obsolete.
136:
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is therefore derived by using filters which each absorb 2/3 of the spectrum for each measurement. This means in practice that much of the light that falls upon the
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702:"Primary Color and Complementary Color Filters | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global"
131:
CCDs with a CYGM color filter array were initially adopted by both Canon and Nikon when these companies transitioned from film photography to digital. Many
154:
Additionally, Panasonic also used CCDs with a CYGM filter array. These were internally referred to as 'complementary color filters'.
117:) are in effect conflated into 'magenta' and 'cyan' sensors. This is shown by a graph of the spectral response of the CYGM sensor.
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used sensors with this colour filter arrangement. Whereas Canon adopted the now standard
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Canon
Digital IXUS 300 (S300 ELPH) Review: 1. Introduction: Digital Photography Review
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644:"Image-Processing Pipelines in a Digital Camera - Jong B. Park, Stanford University"
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models of the 1999–2000 period, such as the PowerShot S10, the
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Sony announce 3.24 megapixel CCD's: Digital
Photography Review
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ICX252AK and ICS252AKF (which sampled in
October 1999.)
63:(GRGB). It similarly uses a mosaic of pixel filters, of
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95:information than the Bayer filter, hence a wider
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632:Kodak DCS620x Review: Digital Photography Review
158:List of cameras with a CYGM colour filter array
147:across its entire range when it introduced the
38:
23:
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124:that used it include the 3 megapixel
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83:to produce a full-color image.
716:"Panasonic confirm Lumix line"
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43:CYGM sensor spectral response
7:
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263:Panasonic Lumix DMC-LC40
91:CYGM gives more accurate
347:Canon PowerShot Pro90 IS
459:Canon PowerShot A5 ZOOM
277:Panasonic Lumix DMC-LC5
137:Canon Digital IXUS S100
79:, and so also requires
543:Canon PowerShot Pro 70
44:
36:
21:
139:(June 2000), and the
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34:isometric perspective
27:
19:
20:Example CYGM pattern
571:Canon PowerShot 600
557:Canon PowerShot 350
445:Canon PowerShot A50
431:Canon PowerShot S10
403:Canon PowerShot S20
49:digital photography
28:CYGM pattern on an
741:Color filter array
593:Color filter array
515:Canon PowerShot A5
501:Nikon Coolpix 900S
426:27 September 1999
361:Canon PowerShot G1
300:18 September 2001
291:Nikon Coolpix 5000
249:Nikon Coolpix 2500
221:Nikon Coolpix 5700
207:Nikon Coolpix 4500
193:Nikon Coolpix 4300
188:19 September 2002
179:Nikon Coolpix 3500
141:Canon PowerShot G1
57:color filter array
55:is an alternative
45:
37:
22:
584:
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552:27 February 1998
529:Nikon Coolpix 900
496:15 February 1999
487:Nikon Coolpix 950
482:15 February 1999
473:Nikon Coolpix 700
468:18 February 1999
417:Nikon Coolpix 800
389:Nikon Coolpix 990
375:Nikon Coolpix 880
333:Nikon Coolpix 995
319:Nikon Coolpix 775
305:Nikon Coolpix 885
258:21 February 2002
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646:. Archived from
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613:Foveon X3 sensor
510:26 October 1998
398:27 January 2000
370:18 October 2000
286:11 January 2002
272:11 January 2002
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384:28 August 2000
356:6 January 2001
314:23 August 2001
235:Leica Digilux 1
202:29 August 2002
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454:30 March 1999
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736:Image sensors
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650:on 2013-11-04
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566:16 July 1997
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174:Release date
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97:dynamic range
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652:. Retrieved
648:the original
638:
627:
598:Bayer filter
580:13 May 1996
493:2.11 MP
479:2.11 MP
437:2.11 MP
409:3.14 MP
395:3.24 MP
381:3.24 MP
367:3.14 MP
339:3.14 MP
230:29 May 2002
216:29 May 2002
153:
145:Bayer filter
130:
119:
115:Bayer filter
110:sensor array
101:trichromatic
90:
61:Bayer filter
52:
46:
30:image sensor
608:CYYM filter
603:RGBE filter
577:0.5 MP
563:0.3 MP
549:1.5 MP
535:1.2 MP
521:0.7 MP
507:1.2 MP
465:0.7 MP
451:1.2 MP
423:2.1 MP
353:2.6 MP
325:2.1 MP
311:3.2 MP
297:5.0 MP
283:4.0 MP
269:4.0 MP
255:2.0 MP
241:4.0 MP
227:5.0 MP
213:4.0 MP
199:4.1 MP
185:3.2 MP
168:Sensor size
81:demosaicing
53:CYGM filter
730:Categories
654:2013-11-03
619:References
171:Resolution
93:luminance
587:See also
87:Overview
77:magenta
59:to the
574:1/3.0"
560:1/3.0"
546:1/2.0"
532:1/2.7"
518:1/3.0"
504:1/2.7"
490:1/2.0"
476:1/2.0"
462:1/3.0"
448:1/3.0"
434:1/2.0"
420:1/2.0"
406:1/1.8"
392:1/1.8"
378:1/1.8"
364:1/1.8"
350:1/1.8"
336:1/1.8"
322:1/2.7"
308:1/1.8"
280:1/1.8"
266:1/1.8"
252:1/2.7"
238:1/1.8"
210:1/1.8"
196:1/1.8"
182:1/2.7"
165:Camera
69:yellow
51:, the
133:Canon
73:green
294:2/3"
224:2/3"
149:DSLR
126:Sony
122:CCDs
75:and
65:cyan
106:RGB
47:In
32:in
732::
71:,
67:,
718:.
704:.
657:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
