From c64fe6ab259d8abc4b96e37a8a046ce43eb6f24b Mon Sep 17 00:00:00 2001
From: Gordon Shumway <39967334+oddluck@users.noreply.github.com>
Date: Tue, 27 Aug 2019 19:22:58 -0400
Subject: [PATCH] quantize/no-quantize option for color reduction

---
 ASCII/plugin.py | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/ASCII/plugin.py b/ASCII/plugin.py
index 6739d9d..104fb20 100644
--- a/ASCII/plugin.py
+++ b/ASCII/plugin.py
@@ -827,6 +827,12 @@ class ASCII(callbacks.Plugin):
             speed = 'dithered'
         else:
             dither = False
+        if 'quantize' in optlist:
+            quantize = True
+        elif 'no-quantize' in optlist:
+            quantize = False
+        else:
+            quantize = self.registryValue('quantize', msg.args[0])
         if 'bg' in optlist:
             bg = optlist.get('bg')
         else:
@@ -923,8 +929,8 @@ class ASCII(callbacks.Plugin):
             if dither:
                 image2 = hitherdither.diffusion.error_diffusion_dithering(image2, self.palette, method=dither)
                 image2 = image2.convert('RGB')
-            elif 'no-dither' not in optlist:
-                image2 = image2.convert('P', palette=Image.ADAPTIVE)
+            elif quantize:
+                image2 = image2.quantize(method=1, dither=None)
                 image2 = image2.convert('RGB')
             colormap = np.array(image2)
             self.matches = {}
@@ -1244,7 +1250,7 @@ class ASCII(callbacks.Plugin):
                 irc.reply(line, prefixNick=False, noLengthCheck=True, private=False, notice=False, to=channel)
         if self.registryValue('pasteEnable', msg.args[0]):
             irc.reply(self.doPaste(url, paste), private=False, notice=False, to=channel)
-    img = wrap(img,[optional('channel'), getopts({'w':'int', 'invert':'', 'fast':'', 'slow':'', '16':'', '99':'', '83':'', 'delay':'float', 'dither':'text', 'no-dither':'', 'chars':'text', 'bg':'int', 'fg':'int', 'ramp':'text', 'no-color':'', 'block':'', 'ascii':'', '1/4':'', '1/2':'', 's':'float', 'tops':''}), ('text')])
+    img = wrap(img,[optional('channel'), getopts({'w':'int', 'invert':'', 'fast':'', 'slow':'', '16':'', '99':'', '83':'', 'delay':'float', 'dither':'text', 'quantize':'', 'no-quantize':'', 'chars':'text', 'bg':'int', 'fg':'int', 'ramp':'text', 'no-color':'', 'block':'', 'ascii':'', '1/4':'', '1/2':'', 's':'float', 'tops':''}), ('text')])
 
     def scroll(self, irc, msg, args, channel, optlist, url):
         """[<channel>] [--delay] <url>