acutance

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09:56 Apr 5, 2010
English to Persian (Farsi) translations [PRO]
Art/Literary - Photography/Imaging (& Graphic Arts)
English term or phrase: acutance
Definition from photographytips.com:
A measure of the sharpness with which the film can produce the edge of an object.

Example sentence(s):
  • In broad terms, digital really out performs film in rendering high acutance images. In theory, pixels side by side, could make abrupt changes in contrast. However film, with its layers of silver halide crystals, can never render the same degree of edge sharpness. Mark Cassino
  • The acutance is the geometric mean of the slope of the edge trace divided by the overall density difference. Acutance in a photographic emulsion depends to a large extent on the nature of the developer used. Net Industries and its Licensors
  • One often quoted property of Rodinal is that it increases the grain of the film, that isn't true. At the 1:25 dilution the developer will give you very similar results to any general purpose developer in both apparent grain and acutance, higher dilutions will show progessively more grain along with increased accutance. Mark Antony Smith
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Summary of translations provided
5تفکیک‌پذیری لبه‌ عکس
Alireza Jazini


  

Translations offered


3677 days   confidence: Answerer confidence 5/5
تفکیک‌پذیری لبه‌ عکس


Definition from exif:
این مفهوم میزان واضح بودن لبه‌های تصویر را می‌رساند، هر چه مقدار آن بالاتر باشد لبه‌های تصویر ما و حاشیه‌های ما واضح‌تر خواهد بود.

Example sentence(s):
  • شفافیت sharpness از ترکیب دو عامل بدست میاد: وضوح resolution و تفکیک‌پذیری لبه‌ها acutance. رزولوشن ساده و سرراست هست و ذهنی و وابسته به هر شخص نیست. درواقع اندازه فایل تصویر به پیکسل هست. اگه تمام عوامل دیگه یکسان باشه، هرچه رزولوشن و وضوح بیشتر باشه، تصویر پیکسل‌های بیشتری داره و بنابراین می‌تونه بیشتر شارپ بشه. تفکیک‌پذیری acutance کمی پیچیده‌تر هست. اندازه ذهنی کنتراست در لبه هست. هیچ واحدی برای acutance وجود نداره. شما یا فکر می کنین یه لبه کنتراست داره و یا فکر می کنین که اینطور نیست. لبه‌هایی که کنتراست بیشتری دارن برای سیستم بینایی انسان واضح‌تر به‌نطر می‌رسه. - photography  
Alireza Jazini
Canada
Local time: 11:30
Native speaker of: Native in Persian (Farsi)Persian (Farsi)
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