Image analyzer

Image analyzer

Overview

Use this section to prevent users from viewing pornographic image content.
This section allows you to block inappropriate images by analysing the graphical content of an image, in real time.
The default template replaces the blocked image with a checkered box.

Global

Image-global.jpg

Enabled

Enable or Disable this section.
  1. TRUE: Enable image scanning.
  1. FALSE: Disable image scanning.

Default template

Specify the template or notification message to be sent, when entry content is matched.
The default template replaces the blocked image with a checkered box.

Filtering policies

Add policies to apply to the matching entries.
Images are given scores by analysing the graphical content of an image, in real time.
-10.0 is unlikely to be porn, 0 is very likely.
Images are blocked based on the threshold score.
Image-policy.jpg

Enabled

Enable or Disable this Policy.
  1. TRUE: Enable this entry.
  1. FALSE: Disable this entry.

Comment

For documentation and future references, explain the relevance of this entry with your policies.
That is, by reading the policies, a future user can understand the purpose of that entry.

Bypass Image Scanning

Enable or disable bypass image filter scanning.
  1. TRUE: Enable bypass image scanning if you want this entry to be applied for image scanning.
  1. FALSE: Disable bypass image scanning if you do not want this entry to be applied for image scanning.

Profiles

Specify the Profiles applicable for this entry.
This entry will be applicable only if the connection has any one of the specified profiles.
Leave it Blank, to apply for all connections irrespective of any applied profile.
To avoid application to a connection that has a profile, use a negated profile (!profile).

Threshold

Specify the threshold score to block images.
Images are given scores by analysing the graphical content of an image, in real time.
-10.0 is unlikely to be porn, 0 is very likely.
Images are blocked based on the threshold score.

Template

Specify the template to replace when this entry is matched.
Templates are used throughout Safesquid as a replacement for pages that can't be displayed due to filtering, error, or other conditions.
Specify the template name that should be displayed on a user's screen when this entry matches.
The name should be selected from the template section. In the template section, you can find the template name.
The default template replaces the blocked image with a checkered box.

Debug

Enable to just debug, without blocking.
  1. TRUE: Do not block, just blur the image if possibly pornographic.
  1. FALSE: Block images if the score is higher than the threshold.

Example

Rule#1

I want to bypass image filtering for my marketing team users.
The marketing team uses social media for digital marketing, I want to bypass image filtering only for my marketing team users.
However general rule will be applied to the marketing team where all adult and blacklisted websites will be blocked.
Using the profile "Bypass image filtering" I can create an access policy that will bypass the image filter for the Marketing Team.
Slide1-imgFltr.png

Rule#2

I want enhanced image scanning for connections with the profile “ENFORCE PARANOID IMAGE SCAN’.
The threshold for image scanning is set to -1.0, which will block images where the skin exposure is even the slightest compared with the score of 0.0.
Slide2-imgFltr.png

Rule#3

I want the connections with the profile “IMAGE ANALYZER DEBUG” to render the score for each image it scans but it should not blur the images.
This can help to understand how Image scanning works.
Slide3-imgFltr.png

Rule#4

I want a standard image-scanning rule which will be applied to every connection
Images that are adult images will be blocked.
Blocked images will be rendered as blurred images.
Slide4-imgFltr.png




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