>>6487939Crop & resize with IranView.
Do edits (crop, watermark removal, color adjust) first, then resize.
Ratio of interest: 16:9 - 1920x1080, 2560x1440, etc.
16/9 = 1.77777777778
9/16 = 0.5625
I'll use
>>6487939 as an example. Original image is 5185x3456 pixels; 3456 is too tall, so use the wide dimension & multiply by 9/16: (5185 x 0.5625) = 2916.5625
This will tend to round oddly, so I can try a variation or two by trimming a pixel or three off the base measurement. So long as it's under 0.2 (better if under 0.15), it will usually rouind prefect. In this case, 5184 x 0.5625 = 2916, so the select area will shave one pixel of width, while throwing out 540 pixels of height to get a 5184x2916 image that's a perfect 16:9.
I set the bottom edge to just include his shadow & threw away a bit of sky. Mouse to select & adjust area, CTRL+Y (Edit > Crop selection). The exact area of selection in pixels appears in the title bar while selecting & at bottom left when select is not active.
Cheated a bit and went to Image > Color corrections menu (SHIFT+G) & tweaked contrast ,gamma & saturation slightly.
Ready to resize, CTRL+R (Image > Resize/Resample). Lower right pane has a Resample menu, use Lanvzos for highest quality. Left side, Set new size, change 5184 to 2560 and (since the Preserve aspect ratio is be checked at bottom of the left side) height will automatically be 1440.
This particular image had a DPI of 72 when I downloaded it. I usually set that to 300 DPI (I did for this one) just so that all my edits are standardized & also print well if needed; but 120 or 200 is plenty quality enough for just viewing on a computer screen.
Then File > Save as (just S hotkey) the image (so I create a new copy instead of overwriting the original) and select which image format and some quality options. For image size v. quality on tihs one, I chose *.jpg at 97%, which is virtually impossible for the human eye to detect any image degradation.
Done in 3-5 minutes or so.
