Improving picture quality - Revision history

Daleathan: /* Step 1 */

2011-11-03T02:16:22Z

‎Step 1

Daleathan: /* Step 1 */

2011-11-03T02:15:56Z

‎Step 1

Gioto: /* Step 1 */ GNU Image Manipulation Program

2011-10-20T02:56:30Z

‎Step 1: GNU Image Manipulation Program

Lcc: /* The sample picture 1 */

2010-08-28T13:36:49Z

‎The sample picture 1

Lcc: /* What does it say? */ rev

2010-08-28T13:30:38Z

‎What does it say?: rev

Lcc at 13:28, 28 August 2010

2010-08-28T13:28:51Z

Romjerome: /* Tutorials on the internet */

2010-08-28T08:15:44Z

‎Tutorials on the internet

Romjerome: /* Tutorials on the internet */

2010-08-28T08:15:24Z

‎Tutorials on the internet

Romjerome: /* Tutorials on the internet */

2010-08-28T08:14:42Z

‎Tutorials on the internet

Dm1407: fix

2009-06-22T05:26:04Z

fix

@@ Line 19: / Line 19: @@
 To edit it, [http://www.gimp.org The Gimp (GNU Image Manipulation Program)] comes to the rescue.
 # Open the file.
-# Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, {{man key press|CTRL|C}}, {{man key press|CTRL|N}} + click OK, {{man key press|CTRL|V}}.
+# Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, {{man key press|CTRL|C}}, {{man key press|CTRL|N}} + click {{man button|OK}}, {{man key press|CTRL|V}}.
 # Save the file in the GIMP xcf format.

@@ Line 19: / Line 19: @@
 To edit it, [http://www.gimp.org The Gimp (GNU Image Manipulation Program)] comes to the rescue.
 # Open the file.
-# Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, CTRL+C, CTRL+N + click OK, CTRL+V.
+# Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, {{man key press|CTRL|C}}, {{man key press|CTRL|N}} + click OK, {{man key press|CTRL|V}}.
 # Save the file in the GIMP xcf format.

@@ Line 17: / Line 17: @@
 ==== Step 1 ====
-To edit it, [http://www.gimp.org The Gimp] comes to the rescue.
+To edit it, [http://www.gimp.org The Gimp (GNU Image Manipulation Program)] comes to the rescue.
 # Open the file.
 # Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, CTRL+C, CTRL+N + click OK, CTRL+V.

@@ Line 19: / Line 19: @@
 To edit it, [http://www.gimp.org The Gimp] comes to the rescue.
 # Open the file.
-# Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, CTRL+C, CTRL+N + click OK, CTRL+V
+# Select the relevant portion with the <code>rectangular select tool</code>. Copy and paste into a new canvas: type respectively, CTRL+C, CTRL+N + click OK, CTRL+V.
-# Save the file in the GIMP xcf format
+# Save the file in the GIMP xcf format.
 ==== Step 2 ====
 In Gimp, the Filters menu has the correctly named 'Enhance' submenu.
-# Choose <code>2x2 Contrast Enhance</code>
+# Choose <code>2x2 Contrast Enhance</code>.
 # Select the <code>Destripe</code> option, and set the value to 50.
 # Now, in the ''Tools menu'', go to the ''Colour Tools'' submenu, and choose  ''Curves''. You can now play with the curve level to get a better contrast on the picture. <br />[[Image:adjust_colour_curve_example1.png]]<br /> We see here that the picture lacks in white and in black, but has a second peak of darkgrey pixels. We enhance the white to make the contrast larger, and we downgrade the importance of the darkgrey peak. We also cut out completely the black.
@@ Line 41: / Line 41: @@
 Open the jpeg file with [http://www.digikam.org Digikam]. Via the crop tool you cut out the relevant section of the picture. Next you go in the ''Fix->Colors'' menu, and select ''Auto-correction''.
-Choose as type: ''Equalise''
+Choose as type: ''Equalise''.

@@ Line 67: / Line 67: @@
 This particular act was dated the 2nd of July 1657 (folio #46)
 === What does it say? ===
-The reason of editing the picture is sometimes to have a nice picture going with the source. However, in other cases, cleaning up is paramount to be able to read the source. Here this is not really the case, but reading might nevertheless be enhanced by the sharper contrast.
+The reason of editing the picture is to have a nice picture going with the source. However, in some cases, cleaning up is paramount to be able to read the source. Here this is not really the case, but reading might nevertheless be enhanced by the sharper contrast.
 Once you decipher how this priest writes ''B'' and ''P'' and ''s'', reading becomes possible.

@@ Line 1: / Line 1: @@
 {{languages}}
-While researching your family tree, you will come along old sources that need careful handling. Pictures from these taking in an archive are often not optimal, and need cleaning up to make the text readable. Some pictures are snapshots of microfilm screenreaders.
+While researching your family tree, you will come along old sources that need careful handling. Pictures from these taken in an archive are often not optimal, and need cleaning up to make the text readable. Some pictures are snapshots of microfilm screenreaders.
-Here we show how you can work on your picture to make the text come out better, improving readability. All with open source software, off course!
+Here we show how you can work on your picture to make the text come out better, improving readability. All with open source software, of course!
 == The sample picture 1==
@@ Line 13: / Line 13: @@
 A good application to view these files is ''Gwenview'' (KDE) or ''GQviewer'' (Gnome).
-=== Cleaning 1: obtaining a nicer picture with GIMP===
+=== Cleaning 1: Obtaining a nicer picture with GIMP===
 ==== Step 1 ====
@@ Line 44: / Line 44: @@
-==== Step 2: brightness contrast improvement with GIMP ====
+==== Step 2: Brightness contrast improvement with GIMP ====
 [[Image:Unclean_picture_example1_digikam2_gimp.jpg|thumb|Step 2]]
-Digikam only allows brightness correction on the entire picture, so right-click on the picture of step 1, and open it with GIMP. In Gimp, we will make a rectangular selection of the different regions: left, center, right and bottom, and we adjust brightness/contrast separately via ''Tools menu--> Colour Tools'' then ''Brightness-contrast''
+Digikam only allows brightness correction on the entire picture, so right-click on the picture of step 1, and open it with GIMP. In Gimp, we will make a rectangular selection of the different regions: left, center, right and bottom, and we adjust brightness/contrast separately via ''Tools menu--> Colour Tools'' then ''Brightness-contrast''.
@@ Line 67: / Line 67: @@
 This particular act was dated the 2nd of July 1657 (folio #46)
 === What does it say? ===
-The reason of editing the picture is to have a nice picture going with the source. However, in some cases, cleaning up is paramount to be able to read the source. Here this is not really the case, but reading might nevertheless be enhanced by the sharper contrast.
+The reason of editing the picture is sometimes to have a nice picture going with the source. However, in other cases, cleaning up is paramount to be able to read the source. Here this is not really the case, but reading might nevertheless be enhanced by the sharper contrast.
 Once you decipher how this priest writes ''B'' and ''P'' and ''s'', reading becomes possible.
@@ Line 85: / Line 85: @@
 === Some comments on the name ===
-Starting from the early 1600 the name changed with the different interpretations of the priests. The name was recorded orally. Lens, Lensen, Lenssen(s), Lenz(e), Lentz, Lensch, Linsing(h), Lince(ns), Len(t)zen and Leyns(e) all refer to the same name. Earliest recording date back to 1326. It is a patronymic name: origin : Laurentius.
+Starting from the early 1600 the name changed with the different interpretations of the priests. The name was recorded orally. Lens, Lensen, Lenssen(s), Lenz(e), Lentz, Lensch, Linsing(h), Lince(ns), Len(t)zen and Leyns(e) all refer to the same name. Earliest recording dates back to 1326. It is a patronymic name: origin : Laurentius.
 == Tutorials on the internet ==
 If you have found a nice tutorial on the net, add it here.

@@ Line 92: / Line 92: @@
 *[http://www.gimpguru.org/AskTheGuru/G20040808/ Cleaning an old sepia picture]
 *[http://www.holoweb.net/~liam/pictures/howto/clean-up-a-scan/ Cleaning a scan of an engraving]
-''Other''
+'''Other:'''
 *[http://script.byu.edu/ Script Tutorials] offers guidance in the deciphering of manuscripts and other old documents that were printed in old typefaces or written in old handwriting styles.
 [[Category:Genealogy]]