Why do two images that have the same pixel dimensions have different storage sizes?
Most images are held in a compressed format that works by finding repeatable patterns in the arrangement of pixels. For example, a row of 100 red pixels can be compressed into something like "row 15 is all red" rather than 100 individual pixels each being saved as red. So, the more patterns the c…
The Short Answer
Most images are held in a compressed format that works by finding repeatable patterns in the arrangement of pixels. For example, a row of 100 red pixels can be compressed into something like "row 15 is all red" rather than 100 individual pixels each being saved as red. So, the more patterns the compression algorithm can fine, the more compressed the image can be and the smaller the file will be. To take opposing examples. A 100 x 100 pixel image of a red square can be easily saved as "put red into every square" while a 100 x 100 pixel image of randomly generated colors without any patterns must have the color of every pixel saved in order to be properly reproduced, which takes up far more space than the simple red square.
Analysis
Key Concepts: Compressed, patterns, pixels
This explanation focuses on compressed, patterns, pixels and spans 127 words across 5 sentences. At 69% above the average Technology explanation (75 words), this is one of the more thorough answers in this category, reflecting the complexity of the underlying question.
What This Answer Covers
The explanation opens with: “Most images are held in a compressed format that works by finding repeatable patterns in the arrangement of pixels.” It then elaborates with concrete examples, ultimately building toward a complete picture across 5 connected points.
How This Compares in Technology
Ranked #76 of 500 Technology questions by answer depth (top 16%). This places it in the comprehensive tier — the top quarter of most thoroughly answered questions. Questions at this depth typically involve multi-faceted topics requiring nuanced explanation.
Frequently Asked Questions
Is there a simple explanation for why two images that have the same pixel dimensions have different storage sizes?
Most images are held in a compressed format that works by finding repeatable patterns in the arrangement of pixels. For example, a row of 100 red pixels can be compressed into something like "row 15 is all red" rather than 100 individual pixels each…
How detailed is this explanation compared to similar Technology questions?
This is one of the most thorough answer at 127 words, ranked #76 of 500 Technology questions by depth. The key concepts covered are compressed, patterns, pixels.
What approach does this answer take to explain two images that have the same pixel dimensions have differen?
The explanation uses concrete examples across 127 words. It is categorized under Technology and addresses the question through 1 analytical lens.