[Digikam-devel] [Bug 253622] New: digikam editor cannot use unsharp mask with radius smaller than one with Canon 7D RAW images

[Roman Fietze]

https://bugs.kde.org/show_bug.cgi?id=253622

           Summary: digikam editor cannot use unsharp mask with radius
                    smaller than one with Canon 7D RAW images
           Product: digikam
           Version: 1.4.0
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Image Editor
        AssignedTo: digikam-devel at kde.org
        ReportedBy: rfkd at fietze-home.de


Created an attachment (id=52353)
 --> (http://bugs.kde.org/attachment.cgi?id=52353)
Blown out image with USM radius < 1

Version:           1.4.0 (using Devel) 
OS:                Linux

When editing a Canon EOS 7D CR2 image and trying to use a radius smaller than
1, the the image "blows out". See the attached screenshot for an example.

Because of the size of the 7D RAWs of 20-30 MB I will not attach an image file.
In case such a file is needed to reproduce the error I' ll find a way to
provide such a file, evt. by creating a small oder medium sized RAW which is
supported by the 7D.

Reproducible: Always

Steps to Reproduce:
digikam -> edit Canon 7D RAW image -> Sharpen -> USM -> Select Radius < 1

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