Stamp Analyser Operation.

Inputting Images into the Stamp Analyser

On the Mac, you simply drag and drop your stamp image into the view labeled: “Drag & Drop Image here”. The image can be dragged directly from any website or from anywhere on your computer. You may also copy/cut an image from any application or web page and then simply Paste it into the Stamp Analyser using the edit menu of the Stamp Analyser. 

On the iPhone and iPad you input images using the tools menu on the Main View.  There are five buttons in the tools menu. The function of each button is as follows:

1. “Photos” – pressing this button will allow you to select any image in the photo library of your device.

2. “Camera icon” – pressing this button will allow you take a photograph of your stamp. click here for  details on photographing stamps.

3. “Paste” –  after copying and image either from your device library or the web, you use this option to paste the image into the Stamp Analyser. click here for more details on copying images from the web.

4. “Share Sheet” – Pressing this button will will bring up a pop-up with a print option for the certificate.

5. “Crop Icon” – This icon is used to enable or disable the Photos Crop Mode. Available on version 2.1 and above.

Description of the Results On the Main View

Title field

On the Mac the image file path/URL is displayed at the top center of the screen. On the iPhone: the title is displayed below the stamp image and on the iPad just above the image.

On the Mac: You can edit this field using the Edit & Format menus. The Stamp Analyser will remember the title Attributes (e.g. font, color etc.) once set. If you want to set a generic title and do not want it updated each time a new stamp is analyzed, set the “Title Display Option” to “fix title” from the tools menu.

On the iPad:  click the title field to edit the title.

On the iPhone:  Due to space limitations, the title is not editable.

Stamp Image

A color image of the stamp with superimposed lines along the perforations and the frame boundary are displayed. The lines along the perforations are displayed in blue and the lines identifying the frame boundary are displayed in orange. When required, grab handles at each end of the line can be used to move the lines to align them with the frame boundary or the perforations/stamp edge. 

When the Stamp Analyser does not “see” ANY part of the line along the frame boundary, it changes the line color from orange to red; and similarly, when the Stamp Analyser can not read ANY perforations, it changes the line color from blue to dotted red. 

The grabs handles are active on the Main View (Mac only) and the Magnification View. To display the Magnification View view, double click or tap the stamp image, and to select a grab handle, click or tap it. Once a grab handle is selected, the line connected to the grab handle will turn green. You can then either drag the line or use the arrow keys (keyboard arrow keys on the Mac) for finer control.

To facilitate the repositioning of the lines you can change the colour stamp image to an outline image, swap grab handles or show/hide the lines. 

On the Mac : use the View Menu for the above functions.

On the iPhone and iPad, on the Magnification View

  •  Click the “swap image” button to toggle between color and outline image;
  •  Click the “swap handles” button to toggle between orange and blue handles;
  •  Click the “blue eye ” icon  to toggle between show/hide of the blue lines along the perforations ;
  •  Click  “orange eye” icon ” to toggle between show/hide of the orange lines along the stamp frame;
  •  Instead of tapping an orange or blue square, you can use the  the  “+ -” icon to select grab handles ;

Once you are satisfied that the lines are correctly positioned you have to select “Renalyse” for the changes to take effect.

When multiple lines are required to be repositioned, It is recommended that you reposition the blue lines first. Follow this by pressing “Reanalyse”;  and then reposition the orange lines followed by “Reanalyse”.

Perforations

The Stamp Analyser normally reads all the perforations. However, the blue lines are drawn along the perforations that were used in the calculation.

The perforation values are displayed as: “perforations per 2 cm”

The qualifiers for the perforation display fields are:

Numeric value displayed in Black – highest confidence in the accuracy of the value.

Numeric value displayed in Blue – medium confidence in the accuracy.

Numeric value displayed in Orange – low confidence in the accuracy.

Word “IMPERF” displayed – When the stamp side is an imperforate.

Word “Error” displayed – when the value of the perforations per 2 cm either exceeds a maximum of 18 or the Stamp Analyser could not reliably measure the perforations. This could be due to an invalid DPI or damaged/missing perforations.

In cases where the stamp Analyser is unable to read the perforations due to cancellation marks, try moving the blue line closer to the perforations and click “Reanalyse.” This may resolve the problem.  

Normally, the Stamp Analyser will identify the stamp edges as perforate (a numeric value in the perforation field)  or imperforate (the word IMPERF in the perforation field). However, in rare cases when the imperforate edges are jagged, it may mistake the jagged edges for perforations. Also, when a stamp edge has heavy cancellation marks along the perforations it may not be able to “see” the perforations. In such cases you can override the edge type as follows:

On the Mac: use the Tools menu or click the perforation field to switch between imperforate and perforate.

On the iPhone and iPad: simply the tap the perforation field to switch between imperforate and perforate.

DPI 

The DPI used to calculate the perforations and the frame dimensions is displayed below the perforation result. If the DPI does not match the DPI of your scanned image, you can change it.

On the Mac: use the drop down list or enter the value if it is not available through the drop down list.

On the iPhone and iPad: tap the DPI value, change it using the presented keyboard.

Margin Widths and Stamp Grade

Margin widths are displayed in image pixels or normalized values. Click or tap on any margin width value to toggle the between the two formats.

A numerical  index 0 -100 and a grade (example XF 90) are also displayed. This grade is calculated based on the balance between the four margins.

Optionally, you can add the stamp Soundness (faults) and Eye Appeal components of the grade. To do this click or tap the detailed disclosure button next to “fault settings”.

 For the soundness components , the Stamp Analyser will automatically calculate the grade reduction for the entered fault. This grade reduction is obtained from a table in the PSE Grading Guide. You can override this by selecting a different value.

For the Eye Appeal component, the Stamp Analyser will present a default reduction or addition to the grade, which can also be overridden.

For both the above functions you can click or tap on the detailed disclosure buttons in the Fault View to get a summary of the faults and Eye appeal components. For a detailed description refer to the PSE Grading Guide.

On the iPhone, The detailed centering information is displayed on a separate screen. To display this screen “Swipe down” on the stamp image in the Main View.

Sometimes you may note that a margin looks bigger than reported. The Stamp Analyser calculation is based on the perforation nearest to the frame line. Check to see whether there are one or more perforations closer to the frame boundary then the rest of the perforations. If so, then this is reason and it is normal.

Stamp Grade Scale

The grade scale is editable. You can set you own grades.  To edit tap/click the value you need to change and update it.

On the Mac: you can always revert to the default grade scale from the tools menu.

Stamp Frame Dimensions

The Stamp Frame Dimensions are displayed in mm. 

On the Mac: right click the stamp image to see the frame; right click again to hide the frame.

On the iPhone or iPad double click the stamp image to see the frame, double click again to hide the frame.

On the iPhone 4, due to space limitation, the stamp frame dimensions are displayed with the other centring information; accessed by Swiping down on the stamp image in the Main View.

Note: Similar to the perforation calculation, the frame dimension calculation is based on the the DPI.  The DPI has to be correct for this value to be accurate.

Using Grab Handles

Use the grab handles to move lines:

On the Mac: hover the cursor over the “small” squares at the end of an orange or  a blue line until the cursor symbol changes to a “hand” and then click to select the grab handle or  Once a grab handle is selected, the line connected to the grab handle will turn green. You can then either drag the line or use the arrow keys on the keyboard  to move the lines for finer control. 

On the iPhone and iPad:  tap the grab handle to select  it. Once a grab handle is selected, the line connected to the grab handle will turn green. You can then either drag the line or use the displayed arrows to move the line.

Saving the results

On the Mac : use the “Print” option from the file Menu to print the certificate. Click here to see an example of a certificate.

On the iPhone and iPad use the “share sheet” icon to access the  print menu and print the certificate.

On the mac, you can toggle between the main print views using a two finger gesture on the trackpad or moving scrollWheel  (by a reasonable amount) left or right .

Supported file types.

The Stamp Analyser supports most image files support by Mac OS X and IOS. For example .jpg, .gif, tiff, .png, .bmp etc

Stamp margin Marks or smudges

From time to time you may note that the Stamp Analyser has incorrectly identified a frame boundary. This if often due to either a cancelation mark in the margin, glassine impression or some other visible mark that is not part of the stamp. In such cases use the grab handles to reposition the frame boundary line and then press the “ Reanalyze” button to update the results.

A boundary line can also be incorrectly identified if there is insufficient contrast between the stamp and the background, Is is best to use a  black background to scan your stamps. 

Sometimes you may note a small gap between the actual frame boundary and the frame boundary identified by the Stamp Analyser. If the stamp margin is clear, then part of faint line may have been picked up. This is normal.

Stamps that have No frame Boundary

For stamps that do not have distinct frame boundaries i.e. the design runs into the perforations, the Stamp Analyser will attempt to find straight edges within the frame and assume that these edges are the boundaries. In such cases please the centering information.  

 A stamp side has been incorrectly identified

If you note that Stamp Analyser has incorrectly identified a stamp side. For Example, a perforate side may be identified as imperforate and visa versa. In such cases, manually change the stamp side and then press the “ Reanalyze” button to update the results. If this does not fix the problem, try moving the blue line closer to the perforations/stamp edge and then press, “Reanalyze”. 

The perforation line mismatch.

If you note note that the perforation line does not exactly align with the perforations. This is generally due to smudges and/or cancellation marks between the perforations and the frame. In such cases you can move the blue line closer to the perforations or stamp edge and then press, “Reanalyze”. 

Reset and return to the Startup Screen

You do not need to reset the Stamp Analyser to continue analyzing stamps. To Continue analyzing stamps proceed as follows:
On the Mac you simply drag and drop the next stamp in the view where the current stamp is  displayed. The Stamp Analyser will override the previous results. Similarly, on the iPhone or iPad just input the next image using the toolbar.

If you do wish to return to the startup screen you may do so as follows:
On the Mac : select “Show Startup Screen” from the “View” menu. 

On the iPhone and iPad :  tap, hold (2 seconds ) and release the stamp currently displayed in the main view. 
Returning to the startup screen erases the results of the previous analyses, essentially, resets the Stamp Analyser to initial conditions.

Stamp pairs, blocks, or strips, or stamps with parts of their sheet margins 

For all such stamps, use the Tools menu or  toolBar , set the crop mode to “ON”. Then drag and drop the  stamps into the Main  view. 
In the Crop View that is presented, move the crop rectangle around the stamp you want to analyze and “Crop” it.  Click here to see the result. You can then “Save” it and/or “Analyze it. Repeat this process for each stamp you want to analyze. Click here to see an example of a stamp analyzed from a block.