What is the advantage of setting the column SSN varchar (32) on varchar (255)

What is the benefit of defining the SSN column varchar(32) more than varchar(255) even if two of them consumes memory on one byte?

[Vn5socks.net] Automatic update 24 hours a day, 7 days a week – good socks

LIVE ~ 124.65.145.126:7302 | 0.06 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 47.254.25.174:25333 | 0.189 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 188.165.236.46:1088 | 0.257 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 95.110.186.48:10175 | 0.199 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 167.99.170.63:9050 | 0.233 | High value | TX | 76104 | United States | Checked at vn5socks.net
LIVE ~ 2.234.226.32:17779 | 0.219 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 207.188.176.38:28728 | 0.21 | Las Vegas | NV | 89144 | United States | Checked at vn5socks.net
LIVE ~ 148.72.209.6:57437 | 0,046 | Unknown | Unknown | Unknown | United States | Checked at vn5socks.net
LIVE ~ 93.58.108.138:3002 | 0.214 | Bologna | 05 | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 47.94.19.105:3001 | 0.066 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 50.63.3.131:28470 | 0,255 | Scottsdale | AZ | 85260 | United States | Checked at vn5socks.net
LIVE ~ 192.169.216.124:31864 | 0.2 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 47.96.78.125:7302 | 0,065 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 50.62.56.237:2398 | 0.277 | Scottsdale | AZ | 85260 | United States | Checked at vn5socks.net
LIVE ~ 169.239.221.90:50802 | 0.387 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 50.62.59.61:62705 | 0.269 | Scottsdale | AZ | 85260 | United States | Checked at vn5socks.net
LIVE ~ 69.4.86.195:24544 | 0.325 | Unknown | Unknown | Unknown | United States | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24 hours a day, 7 days a week – good socks
LIVE ~ 124.65.145.126:7302 | 0,06 | Beijing | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 47.254.25.174:25333 | 0,189 | Ottawa | ON | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 188.165.236.46:1088 | 0,257 | Unknown | Unknown | Unknown | France | Checked at vn5socks.net
LIVE ~ 95.110.186.48:10175 | 0.199 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 167.99.170.63:9050 | 0,233 | Fort Worth | TX | 76104 | United States |

Evaluation: 5

.

python – Empty image after normalizing RGB pixel values ​​by dividing them by 255

I'm trying to turn a 3D image into 2D. To do this, I normalized the pixel values ​​by dividing them by 255 in order to keep the values ​​in a range from 0 to 1. However, I find that my image becomes completely dark.

Image – https://drive.google.com/open?id=1_LdTI8r4dHlqAfVvLIwMr6IoVKzy-9fH

from skimage.color import rgb2gray
import numpy as np
import cv2
#% matplotlib inline
& # 39; exec (% matplotlib inline) & # 39;
import matplotlib.pyplot as a plt
from scipy import ndimage
from import data skimage

# read the image and print RGB pixel values
pic = plt.imread (# 1.jpeg) / 255 # dividing by 255 to bring the pixel values ​​between 0 and 1
print (pic.shape)
plt.imshow (pic)
plt.show ()

[Vn5socks.net] Automatic update 24 hours a day, 7 days a week – good socks

LIVE ~ 47.254.25.174:25333 | 0.191 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 95.110.186.48:10175 | 0.195 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0,061 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 47.96.78.125:7302 | 0.084 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 94.177.164.39:444 | 0.243 | Galati | 18 | Unknown | Romania | Checked at vn5socks.net
LIVE ~ 2.234.226.32:17779 | 0.215 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 188.165.236.46:1088 | 0,265 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 50.62.61.96:57173 | 0.362 | Scottsdale | AZ | 85260 | United States | Checked at vn5socks.net
LIVE ~ 69.4.86.195:24544 | 0.312 | Unknown | Unknown | Unknown | United States | Checked at vn5socks.net
LIVE ~ 220.79.34.109:2018 | 0.141 | Seoul | 11 | Unknown | Korea, Republic of | Checked at vn5socks.net
LIVE ~ 207.188.176.38:28728 | 0.27 | Las Vegas | NV | 89144 | United States | Checked at vn5socks.net
LIVE ~ 108.160.129.94:1081 | 0.08 | El Centro | California | 92243 | United States | Checked at vn5socks.net
LIVE ~ 178.62.193.217:3130 | 0.189 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 91.121.67.146:9050 | 0,255 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 167.99.170.63:9050 | 0.233 | High value | TX | 76104 | United States | Checked at vn5socks.net
LIVE ~ 125.65.92.104:7302 | 0.24 | Chengdu | 32 | Unknown | China | Checked at vn5socks.net
LIVE ~ 169.239.221.90:50802 | 0.452 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24 hours a day, 7 days a week – good socks
LIVE ~ 47.254.25.174:25333 | 0,191 | Ottawa | ON | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 95.110.186.48:10175 | 0,195 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0,061 | Beijing | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 47.96.78.125:7302 | 0,084 | Ottawa | ON | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 94.177.164.39:444 | 0,243 | Galati | 18 | Unknown | Romania | Checked at

Evaluation: 5

.

[Vn5socks.net] Automatic update 24h / 24 and 7/7 – good socks at 16h20

LIVE ~ 47.93.251.207:3001 | 0.08 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 47.94.19.105:3001 | 0,063 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0.077 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 220.79.34.109:2018 | 0.111 | Seoul | 11 | Unknown | Korea, Republic of | Checked at vn5socks.net
LIVE ~ 125.65.92.104:7302 | 0,235 | Chengdu | 32 | Unknown | China | Checked at vn5socks.net
LIVE ~ 47.96.78.125:7302 | 0,072 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 2.234.226.32:17779 | 0.239 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 47.254.25.174:25333 | 0.284 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 167.99.170.63:9050 | 0.227 | High value | TX | 76104 | United States | Checked at vn5socks.net
LIVE ~ 108.160.129.94:1081 | 0.081 | El Centro | California | 92243 | United States | Checked at vn5socks.net
LIVE ~ 219.77.107.145:13075 | 0,025 | Central District | 00 | Unknown | Hong Kong | Checked at vn5socks.net
LIVE ~ 207.188.179.38:28728 | 0.29 | Sparks | NV | 89434 | United States | Checked at vn5socks.net
LIVE ~ 66.79.176.73:10103 | 0,255 | Redwood City | California | 94063 | United States | Checked at vn5socks.net
LIVE ~ 207.188.178.34:28728 | 0,275 | Sparks | NV | 89434 | United States | Checked at vn5socks.net
LIVE ~ 169.239.221.90:50802 | 0.396 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 91.92.208.183:6347 | 0,343 | Unknown | Unknown | Unknown | Bulgaria | Checked at vn5socks.net
LIVE ~ 163.172.18.149:9050 | 0.252 | Southend | M5 | Unknown | United Kingdom | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24h / 24 and 7/7 – good socks at 16h20
LIVE ~ 47.93.251.207:3001 | 0.08 | Ottawa | ON | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 47.94.19.105:3001 | 0,063 | Ottawa | ON | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0,077 | Beijing | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 220.79.34.109:2018 | 0,111 | Seoul | 11 | Unknown | Korea, Republic of | Checked at vn5socks.net
LIVE ~ 125.65.92.104:7302 | 0,235 | Chengdu | 32 | Unknown | China | Checked at

Evaluation: 5

.

[Vn5socks.net] Automatic update 24 hours a day, 7 days a week – good socks

LIVE ~ 47.96.78.125:7302 | 0.064 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 138.19.68.208:19434 | 0.043 | Barwon | 07 | Unknown | Australia | Checked at vn5socks.net
LIVE ~ 213.246.58.160:18120 | 0.189 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 23.236.77.160:9150 | 0.215 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 188.166.104.152:29594 | 0.22 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 194.88.106.97:23155 | 0.209 | Unknown | Unknown | Unknown | Belgium | Checked at vn5socks.net
LIVE ~ 47.92.112.152:6080 | 0.084 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 213.136.89.190:27832 | 0.283 | Unknown | Unknown | Unknown | Germany | Checked at vn5socks.net
LIVE ~ 47.94.19.105:3001 | 0.067 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 159.65.184.162:9050 | 0,255 | Dallas | TX | 75231 | United States | Checked at vn5socks.net
LIVE ~ 185.40.20.44:26334 | 0.22 | Unknown | Unknown | Unknown | Europe  | Checked at vn5socks.net
LIVE ~ 90.63.171.134:32172 | 0.203 | The mold | 00 | Unknown | Guadeloupe | Checked at vn5socks.net
LIVE ~ 47.93.251.207:3001 | 0.067 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 213.136.89.190:11478 | 0.284 | Unknown | Unknown | Unknown | Germany | Checked at vn5socks.net
LIVE ~ 185.40.20.44:31053 | 0.21 | Unknown | Unknown | Unknown | Europe  | Checked at vn5socks.net
LIVE ~ 2.234.226.32:17779 | 0.206 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24 hours a day, 7 days a week – good socks
LIVE ~ 47.96.78.125:7302 | 0,064 | Ottawa | ON | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 138.19.68.208:19434 | 0,043 | Barwon | 07 | Unknown | Australia | Checked at vn5socks.net
LIVE ~ 213.246.58.160:18120 | 0,189 | Unknown | Unknown | Unknown | France | Checked at vn5socks.net
LIVE ~ 23.236.77.160:9150 | 0,215 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVING ~ 188.166.104.152:29594 | 0.22 | Unknown | Unknown | Unknown | Russian

Evaluation: 5

.

[Vn5socks.net] Automatic update 24/7 – good socks

LIVE ~ 159.89.214.31:9050 | 0.219 | Vancouver | Before Christ | v7y1j7 | Canada | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0.347 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 85.209.163.68:9050 | 0.327 | Unknown | Unknown | Unknown | Saudi Arabia | Checked at vn5socks.net
LIVE ~ 125.65.92.104:7302 | 0.251 | Chengdu | 32 | Unknown | China | Checked at vn5socks.net
LIVE ~ 95.110.230.142:12488 | 0.202 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 124.65.144.38:7302 | 0,076 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 188.166.104.152:47128 | 0,321 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 58.32.254.125:7070 | 0.068 | Shanghai | 23 | Unknown | China | Checked at vn5socks.net
LIVE ~ 212.129.34.117:30359 | 0.229 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 172.98.190.75:40566 | 0.27 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 172.98.172.8:40566 | 0259 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 47.94.19.105:3001 | 0.066 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 172.98.170.107:40566 | 0,255 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 172.98.160.227:40566 | 0.298 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 159.65.184.162:9050 | 0.26 | Dallas | TX | 75231 | United States | Checked at vn5socks.net
LIVE ~ 178.62.250.186:9050 | 0.195 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24/7 – good socks
LIVE ~ 159.89.214.31:9050 | 0.219 | Vancouver | BC | v7y1j7 | Canada | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0.347 | Beijing | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 85.209.163.68:9050 | 0.327 | Unknown | Unknown | Unknown | Saudi Arabia | Checked at vn5socks.net
LIVE ~ 125.65.92.104:7302 | 0,251 | Chengdu | 32 | Unknown | China | Checked at vn5socks.net
LIVE ~ 95.110.230.142:12488 | 0.202 | Unknown | Unknown | Unknown | Italy | Checked at

Evaluation: 5

.

[Vn5socks.net] Automatic update 24/7 – good socks

LIVE ~ 172.98.188.67:40566 | 0.201 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 95.110.230.142:12488 | 0.201 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 172.98.167.16:40566 | 0.286 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 167.99.60.252:9050 | 0,255 | High value | TX | 76104 | United States | Checked at vn5socks.net
LIVE ~ 178.62.250.186:9050 | 0.189 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 124.65.145.126:7302 | 0.066 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 91.121.67.146:9050 | 0.257 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 58.32.254.125:7070 | 0.08 | Shanghai | 23 | Unknown | China | Checked at vn5socks.net
LIVE ~ 159.89.214.31:9050 | 0.199 | Vancouver | Before Christ | v7y1j7 | Canada | Checked at vn5socks.net
LIVE ~ 125.65.92.104:7302 | 0.257 | Chengdu | 32 | Unknown | China | Checked at vn5socks.net
LIVE ~ 47.94.19.105:3001 | 0.07 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 47.92.2.74:7302 | 0,137 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 124.65.144.38:7302 | 0.06 | Pekin | 22 | Unknown | China | Checked at vn5socks.net
LIVE ~ 128.199.254.103:19130 | 0.043 | Unknown | Unknown | Unknown | United Kingdom | Checked at vn5socks.net
LIVE ~ 125.68.172.20:7302 | 0.22 | Chengdu | 32 | Unknown | China | Checked at vn5socks.net
LIVE ~ 85.209.163.68:9050 | 0.192 | Unknown | Unknown | Unknown | Saudi Arabia | Checked at vn5socks.net
LIVE ~ 37.59.50.81:9050 | 0,255 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 198.143.180.4:9091 | 0.257 | Unknown | Unknown | Unknown | United States | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24/7 – good socks
LIVE ~ 172.98.188.67:40566 | 0.201 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 95.110.230.142:12488 | 0.201 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 172.98.167.16:40566 | 0,286 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 167.99.60.252:9050 | 0,255 | Fort Worth | TX | 76104 | United States | Checked at vn5socks.net
LIVE ~ 178.62.250.186:9050 | 0,189 | Unknown | Unknown |

Evaluation: 5

.

[Vn5socks.net] Automatic update 24/7 – good socks

LIVE ~ 45.76.187.188:21345 | 0.173 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 188.166.33.15:9050 | 0.228 | Saint PETERSBOURG | 66 | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 195.154.174.241:9050 | 0.185 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 46.4.20.168:9050 | 0.215 | Unknown | Unknown | Unknown | Germany | Checked at vn5socks.net
LIVE ~ 165.227.20.194:9050 | 0.246 | Santa Cruz | California | 95060 | United States | Checked at vn5socks.net
LIVE ~ 178.62.193.217:3130 | 0.194 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 31.186.25.152:9054 | 0,315 | Unknown | Unknown | Unknown | turkey | Checked at vn5socks.net
LIVE ~ 138.68.59.157:1210 | 0,278 | Wilmington | OF | 19880 | United States | Checked at vn5socks.net
LIVE ~ 47.92.2.74:7302 | 0.086 | Ottawa | SURE | k1y4h7 | Canada | Checked at vn5socks.net
LIVE ~ 37.59.50.81:9050 | 0.249 | Unknown | Unknown | Unknown | la France | Checked at vn5socks.net
LIVE ~ 159.65.184.162:9050 | 0.299 | Dallas | TX | 75231 | United States | Checked at vn5socks.net
LIVE ~ 45.77.88.123:3243 | 0.214 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 64.111.123.121:1183 | 0,255 | Brea | California | 92821 | United States | Checked at vn5socks.net
LIVE ~ 178.62.215.135:4481 | 0.188 | Unknown | Unknown | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 151.80.100.147:32104 | 0.256 | Unknown | Unknown | Unknown | Italy | Checked at vn5socks.net
LIVE ~ 216.21.200.120:10200 | 0.256 | Walpole | ME | 04573 | United States | Checked at vn5socks.net

FireHeaven
Reviewed by FireHeaven sure
.
[Vn5socks.net] Automatic update 24/7 – good socks
LIVE ~ 45.76.187.188:21345 | 0,173 | Unknown | Unknown | Unknown | Unknown | Checked at vn5socks.net
LIVE ~ 188.166.33.15:9050 | 0.228 | Saint Petersburg | 66 | Unknown | Russian Federation | Checked at vn5socks.net
LIVE ~ 195.154.174.241:9050 | 0,185 | Unknown | Unknown | Unknown | France | Checked at vn5socks.net
LIVE ~ 46.4.20.168:9050 | 0,215 | Unknown | Unknown | Unknown | Germany | Checked at vn5socks.net
LIVE ~ 165.227.20.194:9050 | 0,246 | Santa Cruz | CA | 95060 |

Evaluation: 5

.