Image Compression Techniques

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Questions and Answers

When it comes to image type, computers can compress ______ more easily.

vector graphics

The best color palette for compression is ______.

limited/smaller

For graphics with sharp lines and shapes, ______ graphics are generally preferred due to their scalability without loss of quality.

vector

Images with complex gradients and photographic details are better suited for ______ graphics, but require careful consideration of compression techniques.

<p>raster</p> Signup and view all the answers

Using a ______ color palette can significantly reduce the file size of an image, especially for simple graphics with flat colors.

<p>indexed</p> Signup and view all the answers

Lossy compression methods, such as ______, can drastically reduce file size by discarding some image data, but may result in quality loss.

<p>JPEG</p> Signup and view all the answers

______ compression methods, such as PNG, preserve all image data and are suitable for graphics where quality is paramount.

<p>Lossless</p> Signup and view all the answers

When saving images for mobile apps, it's essential to optimize the resolution to avoid ______ memory usage and improve app performance.

<p>excessive</p> Signup and view all the answers

Using image ______ techniques, such as cropping and resizing, can help reduce file size without significantly impacting visual quality.

<p>editing</p> Signup and view all the answers

For icons and logos in mobile apps, using ______ images allows for scalability across different screen sizes without pixelation.

<p>SVG</p> Signup and view all the answers

Unlike raster images, vector graphics are defined by ______, which can be scaled without any loss of quality.

<p>mathematical equations</p> Signup and view all the answers

When compressing images, lossy compression reduces file size by ______, while lossless compression preserves all the original data.

<p>discarding some image data</p> Signup and view all the answers

The PNG format uses ______ compression, making it suitable for images with sharp lines and text, where preserving quality is crucial.

<p>lossless</p> Signup and view all the answers

The JPEG format employs ______ compression, which is well-suited for photographs but can introduce artifacts at high compression rates.

<p>lossy</p> Signup and view all the answers

An indexed color palette limits the number of colors in an image, which can significantly reduce file size, especially for ______ graphics.

<p>simple</p> Signup and view all the answers

______ images use a grid of pixels to represent images, making them suitable for complex gradients and photographic details.

<p>Raster</p> Signup and view all the answers

For graphics with distinct geometric shapes and text, using ______ graphics is preferable due to their ability to scale without losing quality.

<p>vector</p> Signup and view all the answers

Reducing the ______ of an image can significantly decrease file size, but it may also result in a loss of detail if done excessively.

<p>resolution</p> Signup and view all the answers

When creating graphics for mobile apps, it's important to optimize images for different screen sizes to ensure they look sharp without consuming ______ memory.

<p>excessive</p> Signup and view all the answers

Using image ______ tools can help reduce file size by cropping, resizing, and optimizing image settings.

<p>editing</p> Signup and view all the answers

Flashcards

Compressible images

Images with fewer colors are easier for computers to compress because there is less information to store.

Best color palette for compression

A limited and consistent color palette reduces the complexity and size of image files, easing compression.

Study Notes

  • Computers compress images more easily.
  • The best color palette for compression is small.

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