How to Avoid Image Distortion

This article details the three key techniques of resolution setting, file format selection, and compression parameter adjustment, and explains how to use them to keep images sharp and detailed.

Why do the graphics become distorted?

When we import pictures or design drafts, we may encounter problems like blurry edges, color discontinuities, and loss of detail.Most of these problems are caused by improper settings--for example, too low a resolution, over-compression, or the wrong file format.To solve it at its source, it is necessary to find the key parameters.

Three key parameters to prevent distortion.

Resolution: Don't let the pixels run out.

Resolution is the first line of defense against distortion.If you're printing, you should set the resolution at least at 300 PPI. For web display, 72 PPI is sufficient.However, it's important to remember that enlarging a low-resolution image will result in a mosaic effect. In this case, it's best to obtain a new original.

Choosing the right format.

The scene determines the container.

PNG: Suitable for icons with transparent backgrounds, it can preserve sharp edges.

JPEG: This is the best format for photos, but don't compress to less than 80 %.

SVG: The preferred vector graphics format. Graphics don't get blurry when you zoom in or out.

Compression parameters: Be careful not to "lose weight" too much.

In particular, when exporting as a JPEG, the quality slider should not be set below 85 %.Some design software will automatically select "optimize file size," which may secretly lower the color depth. Remember to manually turn this off.

A skill easily overlooked.

Check the color mode.

Print uses CMYK, while screens use RGB.If you get them mixed up, the colors will appear gray or distorted, and the picture will look like an old faded photograph.

Vector graphics processing.

When importing AI or SVG files, remember to check the box that says “ Embed Fonts ” or “ Keep Path Data.Some software automatically converts text into bitmaps, resulting in jagged edges when the image is enlarged.

Previewing is not a cop-out.

Before importing the image, always open the preview window. Many tools (for example, Photoshop's "Import as Smart Object") can show the results of scaling in real time, and allow you to detect the problem of blurred edges in advance.

A fast self-checklist.

Before you insert a graphic next time, spend 30 seconds checking these points:

1. Is the resolution matched to the viewing situation?

2. Does the file format support transparency / vector graphics?

3. Are the quality and safety standards of the compressed food within acceptable limits?

4. Are the colors right for the market?

Adjusting the parameters in this manner will make the image look like a freshly ironed shirt.