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< > BotCompany Repo | #334 // Vertical Signature

Lua code - Image recognition

brightnessThreshold = 0.9
maxSignatureLen = 10

function rgb(i)
  local r = bit32.band(bit32.rshift(i, 16), 255)
    local g = bit32.band(bit32.rshift(i, 8), 255)
    local b = bit32.band(i, 255)
  return r, g, b
end

function bright(r, g, b)
  return (r+g+b)/(255*3)
end

-- from Java class "SegmentCounter"

function countSegments(y, flip)
  local lastPix = 1
  local segments = 0
  for x = 0, (flip and h or w)-1 do
    local pix = bright(rgb(flip and img.getInt(y, x) or img.getInt(x, y)))
    if pix >= brightnessThreshold and lastPix < brightnessThreshold then
      segments = segments+1
    end
    lastPix = pix
  end
  if lastPix < brightnessThreshold then segments = segments+1 end
  return segments
end

function getSegmentSignature(flip)
  local s = ""
  
  local lastN = 0
  for y = 0, (flip and w or h)-1 do
    local n = math.min(countSegments(y, flip), 9)
    if n ~= lastN then
      if #s >= maxSignatureLen then return nil end
      s = s..n
    end
    lastN = n
  end
  if lastN == 0 and #s > 0 then
    s = s:sub(1, #s-1)
  end
  return s
end

w, h = img.width, img.height

sig = getSegmentSignature(false)
if sig then
  return "Vertical signature: "..sig
end

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Comments [hide]

ID Author/Program Comment Date
457 #1000610 Edit suggestion:
!636
!629

main {
static Object androidContext;
static String programID;

public static void main(String[] args) throws Exception {
brightnessThreshold = 0.9
maxSignatureLen = 10

function rgb(i)
local r = bit32.band(bit32.rshift(i, 16), 255)
local g = bit32.band(bit32.rshift(i, 8), 255)
local b = bit32.band(i, 255)
return r, g, b
end

function bright(r, g, b)
return (r+g+b)/(255*3)
end

-- from Java class "SegmentCounter"

function countSegments(y, flip)
local lastPix = 1
local segments = 0
for x = 0, (flip and h or w)-1 do
local pix = bright(rgb(flip and img.getInt(y, x) or img.getInt(x, y)))
if pix >= brightnessThreshold and lastPix < brightnessThreshold then
segments = segments+1
end
lastPix = pix
end
if lastPix < brightnessThreshold then segments = segments+1 end
return segments
end

function getSegmentSignature(flip)
local s = ""

local lastN = 0
for y = 0, (flip and w or h)-1 do
local n = math.min(countSegments(y, flip), 9)
if n ~= lastN then
if #s >= maxSignatureLen then return nil end
s = s..n
end
lastN = n
end
if lastN == 0 and #s > 0 then
s = s:sub(1, #s-1)
end
return s
end

w, h = img.width, img.height

sig = getSegmentSignature(false)
if sig then
return "Vertical signature: "..sig
end
}}
2015-08-18 15:51:24  delete 
455 #1000604 (pitcher) 2015-08-18 00:07:22

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Image recognition results

show nils
Image Result Result calculated
#1000197 Vertical signature: 23212 2016-08-07 20:46:50
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#1000225 Vertical signature: 1 2016-08-05 17:37:13
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#1004060 java.lang.OutOfMemoryError: Java heap space 2016-08-05 13:07:19

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#1000063 Vertical signature: 212 2016-08-04 06:37:52
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#1000072 Vertical signature: 1212 2016-08-03 15:47:49
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#1000199 Vertical signature: 1 2016-08-03 09:16:56
Lua instructions: 167180k (16865 ms)

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#1000015 Vertical signature: 8979532 2016-08-03 00:51:46
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#1000613 Vertical signature: 1 2016-08-01 20:24:31
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#1000614 Vertical signature: 1 2016-08-01 20:24:25
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#1000421 Vertical signature: 12592101 2016-08-01 18:09:06
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#1000336 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 17:48:38

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#1000335 Vertical signature: 1 2016-08-01 17:45:29
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#1000334 Vertical signature: 1 2016-08-01 17:43:40
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#1000330 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 17:37:02

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#1000327 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 16:53:47

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#1000326 java.lang.OutOfMemoryError: Java heap space 2016-08-01 16:53:18

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#1000325 Vertical signature: 1 2016-08-01 16:42:25
Lua instructions: 2125k (215 ms)

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#1000310 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 14:21:21

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#1000309 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 14:20:52

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#1000301 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 14:20:50

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#1000294 Vertical signature: 31010391 2016-08-01 14:20:46
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#1000279 Vertical signature: 1 2016-08-01 13:46:20
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#1000267 Vertical signature: 9141479141 2016-08-01 12:45:45
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#1000241 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 09:35:20

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#1000240 Vertical signature: 159431 2016-08-01 09:33:51
Lua instructions: 2202k (299 ms)

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#1000236 Vertical signature: 1921 2016-08-01 09:20:47
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#509 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 08:39:43

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#500 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 08:34:29

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#499 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 08:34:28

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#1000226 Vertical signature: 1 2016-08-01 08:27:52
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#488 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 08:19:35

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#1000212 java.lang.OutOfMemoryError: Java heap space 2016-08-01 08:19:35

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#1000200 Vertical signature: 1 2016-08-01 08:19:34
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#1000218 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 08:19:31

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#1000186 Vertical signature: 391 2016-08-01 03:04:16
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#1000185 Vertical signature: 1549 2016-08-01 03:04:14
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#1000184 Vertical signature: 2327981 2016-08-01 02:54:47
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#1000181 Vertical signature: 13498 2016-08-01 02:54:26
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#1000163 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-08-01 00:53:36

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#1000162 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 23:21:19

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#1000159 Vertical signature: 121212321 2016-07-31 23:12:21
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#419 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 20:02:18

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#1000120 Vertical signature: 989 2016-07-31 20:01:21
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#1000114 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:54:14

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#1000117 Vertical signature: 1 2016-07-31 19:54:06
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#1000116 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:54:02

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#1000111 Vertical signature: 121 2016-07-31 19:49:07
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#362 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:45:39

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#1000053 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 19:43:12

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#1000219 java.lang.OutOfMemoryError: Java heap space 2016-07-31 18:51:39

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#1003745 java.io.IOException: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operat... 2016-07-31 18:51:23

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Snippet ID: #334
Snippet name: Vertical Signature
Eternal ID of this version: #334/1
Text MD5: 6f66a82062026fc2017bef94e022aa47
Author: stefan
Category:
Type: Lua code - Image recognition
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2015-01-24 18:33:25
Source code size: 1235 bytes / 54 lines
Pitched / IR pitched: No / Yes
Views / Downloads: 2026 / 303
Referenced in: [show references]