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Èç¹ûͼÏñΪpicture_without_noise(´óСΪm*n)£¬²¢ÇÒÏñËØ·¶Î§[0 1]µÄÊý¾ÝÀàÐÍÊÇdouble£¬¸ù¾ÝimnoiseµÄÏë·¨
CODE:
noise_Poiss = poissrnd(lamda*1e12,m,n)./1e12;
picture_with_noise=picture_without_noise+noise_Poiss ;

2 Èç¹ûÄãÏ£ÍûȫͼµÄlamada¸ù¾Ýԭʼͼ±ä»¯,½¨ÒéÓÃimnoiseÊÔÊÔ£¬ÎÒÕâ¸öûÊÔ¹ý¡£¡£¡£¡£
CODE:
noise_Poiss_Change  = imnoise(picture_without_noise,'poisson') £»
picture_with_noise_Change=picture_without_noise+noise_Poiss_Change  ;

2Â¥2015-01-19 16:58:00
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ȫȫfly

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2Â¥: Originally posted by acalephs at 2015-01-19 16:58:00
1 Èç¹ûÄãÏ£ÍûȫͼµÄlamadaΪͬһ¸öÖµ
Èç¹ûͼÏñΪpicture_without_noise(´óСΪm*n)£¬²¢ÇÒÏñËØ·¶Î§µÄÊý¾ÝÀàÐÍÊÇdouble£¬¸ù¾ÝimnoiseµÄÏë·¨

noise_Poiss = poissrnd(lamda*1e12,m,n)./1e12;
picture_with_noise= ...

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acalephs

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3¥: Originally posted by ȫȫfly at 2015-01-20 09:09:40
Çë½ÌһϵÚÒ»¸öCODEÖеÄ1e12Ö¸µÄÊÇÊ²Ã´ÄØ£¿Ð»Ð»...

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ȫȫfly

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4Â¥: Originally posted by acalephs at 2015-01-20 10:42:37
poissrndÖ»ÄÜÉú³ÉÂú×ãËæ»ú·Ö²¼µÄÕûÊý£¬±ÈÈçËµËæ»úÉú³É5¸öÊý£¬Ö»ÄÜÊÇ¡¾1 3 7 2 4¡¿ÕâÖÖÕûÊý£¬Èç¹ûÒªÔÚ0~1£¬¾ÍÒªÏÈ·Å´ó1e12±¶£¨·Å´ó±¶ÊýºÍÊý¾ÝÀàÐÍÓйأ¬Ïê¼ûmatlab µÄhelpÖйØÓÚimnoiseµÄpoisson²ÎÊý˵Ã÷£¬ÖÁÓÚÈ¡Õâ ...

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noise_Poiss = poissrnd(5*1e12,255,255)./1e12;
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5Â¥2015-01-20 22:02:46
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acalephs

¾èÖú¹ó±ö (ÖøÃûдÊÖ)

ÒýÓûØÌû:
5¥: Originally posted by ȫȫfly at 2015-01-20 22:02:46
¸Õ²ÅÓÃMATALB ʵÑéÁËÒ»ÏÂ
noise_Poiss = poissrnd(5*1e12,255,255)./1e12;
ÕâÑù³öÀ´µÄ½á¹û¾ØÕóµÄÔªËØÈ«ÊÇË«¾«¶ÈµÄ5£¬¸Ð¾õ²»¶ÔÄØ...

hist(noise_Poiss )¿´Ò»Ï£¬ÊÇÏÔʾ¾«¶È²»×ã°É¡£ÓÃformat long;max(noise_Poiss() min(noise_Poiss()ÔÙ¿´Ò»Ï£¬×î´ó¡¢Ð¡ÖµºÃÏñÊDz»Í¬µÄ£¬ÒÔǰºÃÏñÊÔ¹ý£¬¼Ç²»Ì«ÇåÁË
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acalephs

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ÒýÓûØÌû:
5¥: Originally posted by ȫȫfly at 2015-01-20 22:02:46
¸Õ²ÅÓÃMATALB ʵÑéÁËÒ»ÏÂ
noise_Poiss = poissrnd(5*1e12,255,255)./1e12;
ÕâÑù³öÀ´µÄ½á¹û¾ØÕóµÄÔªËØÈ«ÊÇË«¾«¶ÈµÄ5£¬¸Ð¾õ²»¶ÔÄØ...

hist(noise_Poiss )¿´Ò»Ï£¬ÊÇÏÔʾ¾«¶È²»×ã°É¡£ÓÃ
CODE:
format long;
max(noise_Poiss(:))
min(noise_Poiss(:))

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ȫȫfly

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
7Â¥: Originally posted by acalephs at 2015-01-20 23:08:41
hist(noise_Poiss )¿´Ò»Ï£¬ÊÇÏÔʾ¾«¶È²»×ã°É¡£ÓÃ
format long;
max(noise_Poiss()
min(noise_Poiss()
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8Â¥2015-01-22 20:43:13
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ȫȫfly

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acalephs

¾èÖú¹ó±ö (ÖøÃûдÊÖ)

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ÒýÓûØÌû:
8¥: Originally posted by ȫȫfly at 2015-01-22 20:43:13
²»ÐУ¬×î´óÖµºÍ×îСֵ¶¼ÊÇÒ»ÑùµÄ£¬ÎҸоõÒ²¾ÍÊÇ´ËÖÖ·½·¨Ðв»Í¨...

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