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< > BotCompany Repo | #346 // Embeddable border finder (getcrop)

Lua code

function tablelength(T)
  local count = 0
  for _ in pairs(T) do count = count + 1 end
  return count
end

function getcrop(img)
  local w, h, g = img.width, img.height, img.getInt
  
  local x1, y1, x2, y2 = 0, 0, w, h
  
  -- left side
  
  local colors = {}
  while x1 < x2 do
    for y=y1, y2-1 do
      colors[g(x1, y)] = 1
    end
    if tablelength(colors) > 1 then break end
    x1=x1+1
  end
    
  -- top side
  
  colors = {}
  while y1 < y2 do
    for x=x1, x2-1 do
      colors[g(x, y1)] = 1
    end
    if tablelength(colors) > 1 then break end
    y1=y1+1
  end
    
  -- right side
  
  colors = {}
  while x2 > x1 do
    for y=y1, y2-1 do
      colors[g(x2-1, y)] = 1
    end
    if tablelength(colors) > 1 then break end
    x2=x2-1
  end
    
  -- bottom side
  
  colors = {}
  while y2 > y1 do
    for x=x1, x2-1 do
      colors[g(x, y2-1)] = 1
    end
    if tablelength(colors) > 1 then break end
    y2=y2-1
  end
  
  if x2 <= x1 or y2 <= y1 then -- weird result? return full image
    x1, y1, x2, y2 = 0, 0, w, h
  end
  
  return x1, y1, x2, y2
end

Author comment

Began life as a copy of #324

test run  test run with input  download  show line numbers   

Travelled to 12 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt

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#1000003 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#201 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#183 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#182 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#178 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#145 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#141 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#115 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#113 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#100 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#98 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#93 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#92 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#91 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#90 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#87 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#85 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#49 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#48 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:18

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#1000053 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:13

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#309 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:44:13

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Snippet ID: #346
Snippet name: Embeddable border finder (getcrop)
Eternal ID of this version: #346/1
Text MD5: be12f03a9dba5ea4b45c2fe06a806153
Author: stefan
Category: image recognition
Type: Lua code
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2015-01-26 00:23:52
Source code size: 1135 bytes / 61 lines
Pitched / IR pitched: No / Yes
Views / Downloads: 1403 / 289
Referenced in: [show references]