Photoshop – How to show the cursor coordinate in selection and dropper

Press Ctrl+T (Command+T) to go to transform mode, then the top left coordinate shows as X, Y in the information window.

Unfortunately, there is no way to see the coordinates of the bottom right of the object, or selection for that matter.

You could also use ImageMagick in an Automator application:

/usr/local/bin/mogrify -filter Lanczos2 -resize 500x -format jpg -quality 96 -path ~/Desktop/ "$@"

The default filter for downscaling images is Triangle, which often makes images look too blurry without additional sharpening in my opinion. Triangle is similar to the resizing methods used by Automator and sips. I usually use Lanczos2 (2-lobe Lanczos), which makes images less sharp than Lanczos (Lanczos3 or 3-lobe Lanczos). Lanczos2 is almost identical to Catrom, and it is also similar to the bicubic option in Photoshop.

You can add sharpening with something like -sharpen 0x0.4+0.8. 0 sets an automatic radius for the convolution kernel, 0.4 is the radius, and 0.8 is the amount.

You can compare the different filters with a command like this:

for f in Bartlett Blackman Bohman Box Catrom Gaussian Hanning Hermite Lagrange Lanczos Lanczos2 Mitchell Parzen Point Robidoux Sinc Spline Triangle Welsh; do convert -filter $f -resize 50% input.png $f.png; done

I uploaded a comparison of different resizing options at http://lri.me/upload/imagemagick-osx-resizing/.

Documentation:

• http://www.imagemagick.org/Usage/filter/
• http://www.imagemagick.org/Usage/resize/