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by Vian Esterhuizen

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Image quality describes how well a photograph matches a perceived technical ideal.

learn more… | top users | synonyms (1)

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4answers
117 views

How can I compare different lenses in terms of quality?

I am currently looking to buy a new lens to replace with kit lens, having an extra reach, faster, better image quality and also better video quality. Without buying all the lenses I have shortlisted, ...
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2answers
199 views

Color loss and clarity issues in Canon T2i

I have a cannon t2i. About two years old now. It used to take great Sharp detailed pictures in all modes and long and short lens. Now when shooting at long distance the image comes out blurry or nor ...
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1answer
76 views

What causes chroma noise in an image sensor

I'm trying to understand what is causing chroma noise in an image sensor, specifically why it is so visible when the ISO is set to a very high value (which for CMOS I guess means that there is an ...
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0answers
50 views

Are there still two classes of Canon IXUS/Powershot/IXY/ELPH around?

When I last time bought a Canon Digital IXUS compact camera, there were basically two series available: "Ultra-compact" Digital IXUS 65 ... 70 ... 75 ... 85 IS ... (Europe) Powershot ...
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0answers
19 views

Is there a meaningful image quality difference between the Canon Powershot SX410 vs SX510?

Can you show me a picture difference between the Canon Powershot SX410 and the Powershot SX510? Is there a noticeable difference between 12 megapixel and 20 megapixel here? I want to buy one of these ...
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0answers
109 views

What is the difference between edge detection, Sobel detection, and Canny detection?

What is the difference between edge detection, Sobel detection, and Canny detection