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Question Tempat terang, ukuran kecil - 28-12-2005, 09:41

Halo semuanya,

Aku punya sedikit hal yang aneh tapi nyata: Pada beberapa digicam apabila kita mengambil gambar di tempat cukup cahaya maka ukuran filenya menjadi 10% (+/- 100 KB: 3.2 MP) dari ukuran asli. Sedangkan kalau ditempat yang kurang cahaya ukuran filenya menjadi ukuran normal (+/- 800 KB: 3.2 MP)

Betulkah begitu?
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Re: Tempat terang, ukuran kecil - 28-12-2005, 11:31

gw coba jawab ya...sori kalo salah
AFAIK kalo di tepat yang cukup cahaya ato cahaya nya lebih cenderung menghilangkan detail dari photo jadi info yang disimpan di file nya lebih sedikit...kalo tempat yang gelap lebih besar karena menyimpan detail yang lebih banyak dan apabila diolah lebih lanjut menggunakan photoshop ato software lain nya, detail tsb bisa timbul kembali...

BTW ini format file nya JPG ya bro ?...kalo menggunakan format RAW terlihat besar file terlihat sama apa pun kondisi lighting nya karena semua data dari CCD disimpan apa ada nya untuk diolah lagi di post process...kalo JPG cenderung melibatkan proses pengolahan di digicam itu sendiri baik dari segi kompresi (yang cenderung menghilangkan detail) dan kualitas, maka file size nya jadi variatif...



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Re: Tempat terang, ukuran kecil - 29-12-2005, 13:21

Dengan kata lain kalo di tempat terang detail-nya kurang? Gak salah tuch? Kalo gelap kan ada noise
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Re: Tempat terang, ukuran kecil - 29-12-2005, 14:33

dari pengalaman gw dalam keadaan terang yang cenderung over detail akan hilang...maka kalo gw moto lebih aman di under exposure daripada over karena kalo di under masih bisa di olah agar dapat pencahayaan yang tepat tanpa menghilangkan detail, kalo over susah untuk diolah agar detail nya tdk hilang...
Noise khan disebabkan penggunaan ISO tinggi pada kondisi kurang cahaya agar mendapatkan exposure yg pas...
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Re: Tempat terang, ukuran kecil - 29-12-2005, 14:45

Oooooo gitu yach? Maklum newbie sih. Thx atas sarannya, terutama kalau di tempat teranx detailnya kuranx. Sekali lagi Thx.
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Re: Tempat terang, ukuran kecil - 31-12-2005, 14:36

kok saya yg jadi bingung ya? gimana caranya file dengan resolusi 3.2 Mp bisa jadi 100 kb ya?

"apabila kita mengambil gambar di tempat cukup cahaya maka ukuran filenya menjadi 10% (+/- 100 KB: 3.2 MP) dari ukuran asli"

ini artinya ukuran file berkurang ya? 10% dari ukuran asli, berarti ukuran file menjadi sekitar 80-100kb kan? terlalu kecil utk file 3.2 MP. soalnya EXIFF aja bisa makan beberapa puluh kb sendiri.

Kamera apa ini yg dibahas ya?
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Re: Tempat terang, ukuran kecil - 02-01-2006, 17:42

mm. camera yang aneh
3.2 MP biasanya 800 KB
but
coba nulis ah
aku cuman pake logika 2 warna item ama putih
fungsi kamera menangkap cahaya
hitam adalah warna dengan nilai terendah dalam susunan warna cahaya
sedangakan putih adalah warna dengan nilai tertinggi dalam pencampuran warna, dalam hal ini pencampuran warna saling menguatkan kayak cahaya televisi. sedanangkan pencampuran warna saling menggelapkan kayak nyampur cat .
warna item sama seperti kita menutup lensa... NO Image
sedangkan putih seperti membuka lensa besar dan lama mengakibatkan banyak cahaya yang masuk.
sehingga jika pada suatu image warna putih semakin banyak maka semakin besar ukuran file sizenya
segitu aja
semoga membantu
mohon maaf kalo kata katanya kacau
soalnya bukan penulis yang baik
salam tu semua

Last edited by Co_Jaton : 02-01-2006 at 17:46.
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Re: Tempat terang, ukuran kecil - 04-01-2006, 11:57

Canon Powershot A300: Itu kamera yg dipake. Emang kenyataannya bener kok! Sebagai contoh, kalo moto:

- Gunung (Outdoor) . +/- 80 KB
- Di dalam rumah (Indoor), +/- 800 KB, bahkan pernah 1 MB!

Memangnya ada yang aneh ya?
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Wink Re: Tempat terang, ukuran kecil - 04-01-2006, 19:10

agak aneh sih 3.2 MP cuman 80 KB apa setingan kualitas seesar photo HP ?
biasanya kalo yang maks 2048 px minimal 700 KB kak
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Re: Tempat terang, ukuran kecil - 04-01-2006, 19:55

@mupit : photo nya ukuran nya 80 kb itu pake format apa ? JPEG kah ? trus resolusi nya berapa sih ?....
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