AutoHDR

Tutorial - Advanced Settings

If you click the 'Advanced' button, a new window appears which gives you access to further options for resizing, smoothing and renaming your images as well as setting a watermark or adjusting the preview size.

Resizing Options
The first option sets when you want to resize the image - never, before you process it or after you process it. Processing before is much faster but gives coarser results. Processing afterwards is of course slower but gives cleaner results.

There are three self-explanatory ways you can define the size:

  • Longest Side - sets the maximum length of the longest side (height or width)
  • Maximum Width - sets the maximum width
  • Maximum Height - sets the maximum height
You can also automatically create a separate small thumbnail of the picture by checking the 'Separate Thumbnail' box and defining resizing options as for the main image.


Automatic File Naming
If you hadn't already realised, you can drag/drop several files at once into the canvas area and AutoHDR will process them as a batch. When you do this, it needs to know where to save the results and what to call them so that you don't have to enter a name for each one.

You can define separate folders and naming conventions for the main pictures and the thumbnails. The naming convention recognises a few special symbols to make it easier:

  • <name> will be replaced by the original filename
  • <n> will be replaced by the number of the file (i.e. where you have added several in a batch)
  • <ext> will be replaced by the appropriate extention. (e.g. png, jpg, gif)
  • <EXT> will be replaced by the appropriate extention. (e.g. PNG, JPG, GIF)
For example, suppose I add three files ("Mountain.jpg","DSC000341_HDR.JPG","24-03-71Australia_HDR.png")

Using "<name>_HDR.<ext>" will create three files called "Mountain_HDR.jpg", "DSC000341.jpg", "24003-71Australia.jpg"
Using "HDRTest_<n>.<EXT>" will create three files called "HDRTest_1.JPG", "HDRTest_2.JPG", "HDRTest_3.JPG"


Watermark Options
By default, AutoHDR adds a watermark to the bottom of your images. Unlike most other freeware, you're not stuck with it. Uncheck the box to remove the watermark or if you prefer, change the text to add your own watermark instead.

If you do remove the watermark, please find some other way to acknowledge the use of the software. Your support is appreciated. Thank you.


Edge-safe smoothing
All cameras produce some level of noise in their pictures. Even with expensive equipment, at low ISO and under good lighting there will be some noise present. Heavy processing can make this noise more visible. Edge-safe smoothing smoothes out these small imperfections while keeping the sharp detail.

If you are heavily processing an image, you may find that the built-in smoothing is more successful than using a commercial denoise package afterwards. This is because AutoHDR uses the original, unprocessed image as its template for smoothing the final image whereas a separate smoothing package can only use the information it has in the final image.

In the example below, the image has been processed very heavily to emphasise noise and then smoothed.


Auto-preview Options
If you use the preview button a lot, you can check the box here to have the preview automatically regenerated whenever you change one of the custom settings. You can also increase the size of the preview if you want a better view and don't mind it being a little bit slower.


Next: Tips for outstanding results (Coming soon...)