3 – Batch Editing … Re-sizing

As the heading suggests we now deal with final sizes for our images.

Its at this point you may want to consider re-sizing your images. There are some distinct advantages to doing so. The most obvious is the reduced amount of data that has to be saved. Then there is the well known aspect of down sizing Jpegs, which tends to improve the overall image quality as unnecessary data is removed. This is one method of Post Processing that a lot of people use as it tends to reduce the amount of noise and artifacts seen in full sized Jpegs. Especially from cameras with smaller sensors such as compacts and super zooms.

My own preference is to shoot and save images as 16:9. There are some obvious reasons for doing so. Firstly smaller files sizes. Secondly the shot to shot times and write times with the HS20 are much improved in this mode. There is no loss of detail or resolution in the images by shooting 16:9 as the camera uses full resolution and simply crops the image to 16:9 for output.

This also aids in the speed of image processing, however one of the overriding reasons for doing so is that almost all computers  are supplied or shipped with a 16:9 screen. Most modern TV’s are 16:9 format.

For today’s modern amateur photographer, unless there’s a very good reason for doing so, shooting in 3:2 or 4:3 mode really doesn’t gain a great deal. Certain scenes and types of photography benefit from the larger format but 95% of everything I shoot is well accommodated in 16:9 format. I have a high definition plasma TV that I view a lot of images on when sharing photos with friends, and the output at this ratio from the HS20 is excellent. It is quite possible that for the HS20 this is the sweet spot for the camera, it certainly is for mine.

You can of course save your edited files in the same format as they were from the camera, whether this be 3:2 or 16:9 or any other size, re-sizing is not a required step here, Its just a recommendation from past experience with the HS20 and Photoscape.

Now that we have the background reasoning in place its time to set the editor to our preference.

resize 1
Fig. 5

In Fig 5 you can see that I have chosen to reduce the images to 1600 pixels for the longest edge.

Having switched from the Filter tab to the Home tab you see the selections settings appear for your image size output.

In Fig. 6 you see a list of sizes to choose from by clicking the small smiley face icon to the right of the resize drop down selector, in this case 1600 pixels for the longest length. If the images are shot as 16:9 then the actual size reduction appears quite small. There is a way to quickly check this.

resize 2
Fig. 6

To check the amount of scaling being applied click on the Drop down menu under the Resize heading and select original image. You will then see the image ( or part of the image ) at the true image size. Don’t forget to re-select Reduce the longer length from the drop down menu to go back to your original setting.


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