Description: The Smooth image filter has no effect when applied to an image. Also, setting the value of the Smooth Radius parameter has no effect. Steps to Reproduce: 1. Select an image that has been inserted into a drawing. 2. Open the Image Filter toolbar and select the Smooth filter to open the Smooth dialog. 3. Increase the value of the Smooth radius parameter. The preview window in the Smooth dialog shows the effect of the Smooth filter. 4. Click OK on the dialog to close and apply the filter effect to the image. 5. No image filter effect on the selected image. Actual Results: The effect of the Smooth image filter is displayed in the Smooth dialog. No effect is shown on the image in the drawing. Expected Results: The effect of the Smooth image filter should be displayed on the image in the drawing after clicking OK to close the Smooth dialog. Reproducible: Always User Profile Reset: No Additional Info: The effect of the Smooth image filter should have been displayed on the image in the drawing.
Created attachment 183335 [details] File with noisy image I cannot confirm it. The filter works for me in Version: 7.5.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 17dfc9a9da009cc23d2222e3fb4e2cef9c97d581 CPU threads: 8; OS: Windows 10.0 Build 19043; UI render: Skia/Raster; VCL: win Locale: de-DE (en_US); UI: en-US Calc: CL threaded Does your image have any noise? Does the selected radius fits to the DPI of the image? If the image is large you need to wait a little bit until the calculations are done. Apply the filter with a radius of 4 to the image in the attachment to see an effect.
Created attachment 183336 [details] original and smoothed image And here an example with original image and with smooth with radius 50 applied image.
After a bit of testing with some of my photos, I have found out that file size is the problem with using the Smooth filter. I cropped one of my photos (JPEG format) from 1.6MB down to 13kb and applied the smooth filter with a radius of 4. The effect was applied almost immediately. Original file size the Smooth filter had no effect, even waiting for 15 minutes to see if the Smooth filter would work. A note will be added to Chapter 6 in the Draw user guide about file size.
The size itself is not a problem. You will get a spinner while LO is calculating. Example: If your picture is 3264pixel wide and you show it on 30cm wide screen, then a radius of 2 is about 0,018cm. You will not notice a change in 100% zoom. You will see the change, when you use a 1000% zoom for example which lets you see single pixels. The Smooth filter is seldom used to generate a large blur effect, but it is used to reduce single pixel errors and to introduce a subtle soft focus effect. I set to "WORKSFORME". You can reopen the bug report in case you do not agree.