srakacamping.blogg.se - Desktop ocr tool

DESKTOP OCR TOOL CODE
DESKTOP OCR TOOL TRIAL

In most desktop environments, global shortcuts do not work while a menu is open, (for example the file menu in the menu bar at the top of most programs). The concept of preclicks is not easy to understand at first, but it solves a really easy to understand problem. To perform a mouse operation immediately, place the mouse on the word in the text area or list entry (in the list view) and press on the corresponding shortcut.

Route the mouse over an Object ( Ctrl+t): used for mouse over events like tool tips.

Single middle click ( Ctrl+m): Usually opens an object in a new tab.

Single right click ( Ctrl+r): open the context menu for the object under the mouse.

Double left click ( Ctrl+d): common for opening entry's in the same window.

Single left click ( Ctrl+l): common for selecting/activating entry's.

You can emulate clicks on the word at the current cursor position via the Interact menu. White: 62 %, Black: 21 % Emulate mouse events there might be others as well some smaller effect or style stuff. This is because we limit our result to 3 colors by default. You may notice that the sum of the 3 colors are not 100%. This means that the 3 most used colors are White (likely the background), Black (likely the font color) and Gray ( some shadow effect). you can turn it on by adding -O flag as parameter.Īfter OCRdesktop comes up, you can move to the word you are interested in and toggle to detail view (see (see #View Modes)) In the detail view there is now a column Color what looks like that: Currently the Color analyzing is disabled by default. OCRdesktop can now analyze this colors for you. You can think about, each word as an box with the background color and its font in another color. Tesseract splits the OCRed text into boxes. If you do not want to restrict recognition to the current window, use the -d option. See ocrdesktop(1) and the ocrdesktop -h for a little help and the available parameters. If -t is not set, 200 is the default value. With this type of image tesseract could also read really bright color fonts (because they are converted into black). No Colours, no noise, no gray scale, just black and white. A gray tone equal or greater is converted into white. Everything less than the defined point will be converted to black. The different tones of gray will break on a defined value between 0 (white) and 255 (black). This may be the method that most often leads to the best results. We get a range of different tones of gray, which could lead to less confusion of tesseract. Inversion of the colors could lead to better results if the colors in the original image cause problems with the text recognition: Tip: You can also combine different options.

DESKTOP OCR TOOL TRIAL

This is a little trial and error for better results. After selecting the options, press F5 to recognize the text again. You can start OCRdesktop with the parameter you want, or select the options in the navigation window via the OCR Options submenu of the OCRdesktop menu. Besides this, you can use different types of transformations before OCRdesktop attempts to recognize the text. OCRdesktop always upscales the current screenshot 3 times for better results. You can also set more than one OCR language: OCRdesktop is able to use all available tesseract languages with -l. Some characters are visually smaller than others, So there is a little difference.

Things like font size or color are approximate values because its calculated by the OCR image. I.e font size, font color, position on the screen (X, Y), confidence of the OCR process and other attributes. Detail mode: This is basically a list where you can see details for any word on the Browse mode.You can move the caret with the arrow keys. The view presents the layout of the currently recognized content. Browse mode: show all the text in a caret navigable text box.You can toggle between the modes with Alt+v. OCRdesktop provides different view modes. With no parameters, OCRdesktop will recognize just the current window and present it in a caret enabled text area. In Gnome you can do this via the Gnome Control Center in the Keyboard window under the Shortcuts tab. Use the tesseract language codes for īasically, this should work in any desktop environment.

DESKTOP OCR TOOL CODE

For languages other than english, you need to set your language code ocrdesktop -l. You also can use parameters to expand the function of OCRdesktop. Make sure that you have the corresponding package for your language from the tesseract-data group installed.Īssign the command ocrdesktop to a shortcut in your desktop environment.