Visual Image Crop (GUI)

[GreenCan]

This is a visual Crop Tool,

Version 1.0.0.5

1. Load the image in the Crop GUI
2. Move the cross-hair to the upper left corner where to start cropping
3. Mark the rectangle with left mouse button, release
4. Adjust the position with left mouse, release (right mouse = start over)
5. Press enter
6. Image is saved in same folder, same format, with '_cr' added to file name

As simple as that.

Updated script,

 Visual Crop UDF 1.0.0.4 examples.au3

 Visual Crop UDF 1.0.0.4.au3 (No obscuration of non-selected  area)

 Visual Crop UDF 1.0.0.5.au3   (with obscuration)

Ver 1.0.0.1

• Avoid trespassing the edge of the GUI while selecting the crop area.

Ver 1.0.0.4

• Mark crop area in any direction
• Resizing Corner grabbers (use with Ctrl Left Mouse button)
• Mouse cursor changes over move and resizing corner grabbers
• Redraw when left mouse clicking outside of crop area (restart crop), right Mouse click, same result.
• Magnifier de-/selectable with Ctrl-M or F2. (original function by Melba23)

    Note:

        without image ratio: Magnifier remains visible till the crop area has been marked
        with image ratio: Magnifier is only visible until the rectangle appears, first corner has been marked.

Ver 1.0.0.5

• Obscure non crop area, did some hard thinking and found my way...

 

Missing still:

• ?

Enjoy

 

GreenCan

Related:

 

Edited June 1, 2015 by GreenCan
Update, last missing feature...

[ldub]

Thanks,
Nice : simple and no loss of quality.
A clone of Fastone image capture would be nice!

[qwert]

Thanks for this example of GDI+ processing

A minor point: I found with the first couple of examples that if the lower boundary of the crop area is below the edge of the GUI then no result is written, yet no error is generated.  I mention this because upon first use, nothing appeared to work ... and then I happened upon this condition as the cause.

 

 

[GreenCan]

Thanks,
Nice : simple and no loss of quality.
A clone of Fastone image capture would be nice!

​

Thanks ldub,

The purpose was not to rewrite Faststone Image Capture but more or less emulate the crop of Faststone Image Viewer.

You may wish to have a look at MrCreatoR screen capture Utility that comes pretty close to Faststone Capture

[GreenCan]

Thanks for this example of GDI+ processing

A minor point: I found with the first couple of examples that if the lower boundary of the crop area is below the edge of the GUI then no result is written, yet no error is generated.  I mention this because upon first use, nothing appeared to work ... and then I happened upon this condition as the cause.

I will check what you mean when I have a free moment​, but it shouldn't be too hard to do some basic error checking.

[GreenCan]

I updated the udf to avoid trespassing the edge of the GUI while selecting the crop area.

Fix implemented on qwert's suggestion.

 

[UEZ]

Why it is not possible to mark area from right to left?

[GreenCan]

Why it is not possible to mark area from right to left?

​I didn't think about left handed people, sorry.  Let me check.

Question, do you know by any chance what the best method is to obscure the non selected area of the picture?

[UEZ]

From right to left I mean select an point, click the left mouse button to mark the area by moving your mouse to the left upper area.

It work only to the right lower area.

Regarding the obscure the non selected area. What you can do is to clone the bitmap and blur the cloned bitmap. When selection has started copy the blurred image and afterwards copy the marked area from the non blurred bitmap. Might be high CPU consuming process.

[GreenCan]

From right to left I mean select an point, click the left mouse button to mark the area by moving your mouse to the left upper area.

It work only to the right lower area.

Regarding the obscure the non selected area. What you can do is to clone the bitmap and blur the cloned bitmap. When selection has started copy the blurred image and afterwards copy the marked area from the non blurred bitmap. Might be high CPU consuming process.

​Hi UEZ,

yes, I understood what you meant , I am working on a fix, not that crazy to do, but need some time.

Concerning the darkening process, I though about overlaying a black png image and alpha blend it, need four squares to darken the surrounding area, I think this is less CPU consuming.

However, I tried to do this yesterday evening, did not succeed, I am not able to make the image visible.  Stopped my search after 3 hours of frustration, sometimes it just not the right moment...

[GreenCan]

Visual Crop UDF Update version 1.0.0.4
New:

• Mark crop area in any direction
• resizing Corner grabbers (use with Ctrl Left Mouse button)
• Mouse cursor changes over move and resizing area
• Redraw when left mouse clicking outside of crop area (restart crop), Right Mouse click, same result.
• Magnifier (de-)selectable with Ctrl-M or F2.

[GreenCan]

I uploaded the script again, same version (sorry for the early downloaders) because no major changes..

• Inserted UDF description
• One extra error check
• Removed all global variables, there are none now.

[GreenCan]

I finally realized the last missing feature, I found a way to obscure the non-crop area by using _GDIPlus_BitmapApplyEffectEx()

If you look at the code, you will find the picture tampering hereunder

#=====#monochromize unselected area=====================

and the reset hereunder

#=== reset image (remove monochrome) ===================

You may wonder why I repeat the 'monochromize' 2 times and 'reset' 3 times. I did not want to use global variables in the udf. I prefer to have the script a bit longer and avoid the use of globals. Of course if you disapprove, you can always create two functions and declare 10 global variables.

Unless bugs are found or someone comes with an interesting idea, ver 1.0.0.5 will be the last edit on this topic.

I leave version 1.0.0.4 (no obscuration) for whom is interested.  The last version might not be comfortable to use on slower PCs.

Edited May 28, 2015 by GreenCan

[NassauSky]

Hi @GreenCan,

3 years later and this script is still awesome. Thanks I really like example 2!

May I ask if you can help me place some GUI components on the bottom of the crop screen? When I try, the refreshing keeps overwriting the button or labels. 

I have seen a frame UDF but that allows the user to resize the frames. I'd like to have your crop image on the top 90% of the screen and have the lower 10% of the screen an area to add some labels and buttons.

Thanks for any help and thanks again for the great code for the tool