Places I go; the image on the top is straight out of the camera only resized to 1024x680 using Bicubic Sharper resampling algorithm in PSE7. I was surprised that resampling to a smaller image of lower resolution (tossing away pixels) gave me a sharper image than the original out-of-the-camera jpeg. (I shot the picture RAW + fine jpeg.)The second image has been processed in Camera Raw, resized to 1024x680, and saved as a PNG file. I can see the difference even in the small images. I used several "sliders", among them Fill Light and Clarity, but I beginning to really appreciate the Clarity slider. It adds punch.
EXIF data & histogram The histogram suggests that the scene has too much contrast for the sensor -- clipped right and left, but this was taken at dusk, and with the bright signs, this is expected.
3 comments:
what's the advantage to a PNG format over a JPG 10? i've only ever used the PNG when I wanted a transparent background that could be more readily resized?
A JPEG file is compressed as you know, but it is also lossy, i.e., each time you save, it's re-compressed, and you lose pixels. Photoshop & Photoshop Elements files are lossless; you can edit, save without degradation. PNG files are compressed but LOSSLESS, so that while the initial file is smaller due to compression, edits and saves do not recompress. Thus quality is preserved.
Forgot to mention that PNG stands for Portable Network Graphics.
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