add logo blur option

wallutils.sh

@@ -142,22 +142,36 @@ compwallpaper() {
         instantoverlay
         imgresize overlay.png "$RESOLUTION"
 
+        # set to invert if logoeffects is not set or broken
+        iconf logoeffects |
+        grep -E 'brighten|dim|contrast|grayscale|invert|blur|flip|swirl' ||
+        iconf logoeffects 'invert'
+
+
+        # perpare effect settings
+        iconf logoeffects | grep swirl && EFFECTS+=("-swirl" "360")
+        iconf logoeffects | grep flip && EFFECTS+=("-flip")
+        iconf logoeffects | grep blur && EFFECTS+=("-blur" "100x100")
+        iconf logoeffects | grep invert && EFFECTS+=("-channel" "RGB" "-negate")
+        iconf logoeffects | grep grayscale && EFFECTS+=("-colorspace" "Gray")
+        iconf logoeffects | grep contrast && EFFECTS+=("-level" "20000")
+        iconf logoeffects | grep dim && EFFECTS+=("-modulate" "50")
+        iconf logoeffects | grep brighten | grep -v dim && EFFECTS+=("-modulate" "150")
+
+	# apply effects
+        convert wall.png "${EFFECTS[@]}" effect.png
+
         # create mask from overlay
         convert overlay.png -alpha extract mask.png
-        # cut the image with the mask
-        composite -compose CopyOpacity mask.png wall.png cut.png
-        # Convert to black and white the cut
-        # convert cut.png -colorspace Gray blackandwhite.png
-        # Negate the black and white cut
-        convert cut.png -channel RGB -negate invert.png
+        # cut the effect image with the mask
+        composite -compose CopyOpacity mask.png effect.png cut.png
         # draw the computed overlay on top of the background
-        convert wall.png invert.png -gravity center -composite instantwallpaper.png
+        convert wall.png cut.png -gravity center -composite instantwallpaper.png
 
         rm wall.png
         rm mask.png
         rm cut.png
-        rm blackandwhite.png
-        rm invert.png
+        rm effect.png
     else
         echo "logo disabled"
         mv wall.png instantwallpaper.png