Transform Tool affecting image quality

Question

Shelley Shroyer     Sep 30, 2017 5:12 PM    (in response to Djay404)     When creating cards or books, anytime I move the image onto the template and use Ctrl + T to transform the image to fit in the space I need, the image goes from sharp to looking pixelated. I am using bicubic automatic. I have never had this issue before so not sure why it just started up unless I have somehow changed a setting in PSD. I use a ton of card templates and book templates and all of my images are being affected when I attempt to move them into a "photo box" on a card and size using Transform tool. I use Transform (to scale). When I move the image initially, it looks fine, sharp and not pixelated. Then, I use the transform tool...image goes pixelated and cannot be restored.

sharp_hands16B8 · Answer

When you're beginning to see pixelation you are scaling pixels to a larger size than they originated.https://helpx.adobe.com/photoshop/atv/cs6-tutorials/understanding-resize-vs-resample.html

When you apply the transformation it has to calculate how to generate new pixels from those original pixels. This is called interpolation or "resampling". That generates pixels based on averages of the original pixels and the surrounding pixel values. This often causes an image to look pixelated or softer.

This might be helpful info to watch.

Understanding Resize vs. Resample

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