dzImage Library

[dzt]

Hi all,

This is my Image Library for Device and Desktop. Short description follows.

Methods:
ScreenCapture: Captures the whole screen.
ScreenCapture2(x,y,width,Height): Captures part of the screen.
ControlCapture(ControlName,x,y,width,Height): Captures part of a control. x,y are relatives to control upper left corner. The control can be a form or any other control
SaveImageBMP(Image, FileName): Saves the Image as BMP to a file with filename Filename.
SaveImageJPEG(Image, FileName): Saves the Image as JPG to a file with filename Filename.
SaveImageGIF(Image, FileName): Saves the Image as GIF to a file with filename Filename.
CopyImage(sourceImage, x,y,width, height): Copies a part of an image. Returns the new cropped Image (part of the source)
RotateImage(sourceImage, angle): Rotates an image. Angle can be one of 0, 90, 180, 270. Returns the rotated Image
ZoomImage(sourceImage, Percent): Zoomes an image Percent% of the original (Percent = 0 to 1000). Returns the Zoomed Image
ImageSize(Image): Returns an array(2) containing width and height of the image. array(0) = width and array(1) = height

Properies:
Image: The recently captured image

For how to use it see the included in the attached zip, test2.sbp

[alfcen]

Yasou Dimitris,

You continue amazing me !
Indispensable for astronomy applications that need to adjust star charts and
planet surface views to simulate different optical systems.

I guess the next version will include

1. MirrorUpDown
2. MirrorLeftRight
3. InvertImage

No, no, please, don't amaze me again

Happy Holidays!
Robert

Supplement:
I had some fun 'playing' with dzImage
No problems encountered, except for RotateImage angle = 0 blacks the form out,
but can be worked around by rotating the source of dr.Image 90 degs every time.
Can't play around any longer, today's my turn for cooking.

Thanks a lot for the new jewel!

Robert

[Erel]

Amazing work dzt
If I'm not mistaken it requires .Net CF 2.0.

[dzt]

Thank you guys for your kind words.

Yes Erel I forgot it. Requires .NET 2.0 (.NETCF 2.0 for the device)

Robert your wishes is an order for me.

New version with:

New Methods:
FlipHorizontal(sourceImage): Flips Horizontal the image
FlipVertical(sourceImage): Flips Vertical the image
InvertImage(sourceImage): Inverts the colours of the image

Changed Property:
Image: The Image property is not any more ReadOnly. You can also use it to store an Image

See included FlipInvert.sbp

Happy Holidays to all!

[dennishea]

@dzt

Your having way too much fun. Even though I haven't needed it yet, when I get there I'm problably going to. You make erel's already great program even greater along with a few other members of this forum.

[alfcen]

Haisai Dimitris,
Agijabiyo, I was afraid you would do that.
The good thing about you is, you keep me away from the streets.
Fantastic, entirely new perspectives for image presentations.
It's nearly 2:00AM on this island. I will feed you back any findings, shortly,
if any.
Thanks so much!
Robert

[derez]

hi Dimitris
Your library is expanding the capabilities of this software in steps too large for me ! its fantastic.

If I want to know the size of a jpg file which I display on a form using form.DrawIimage - how do I do it ? (the file size is bigger than the screen, lets say 1000X1000).
The Imagesize gives me the size of the screen and I need the size of the original image file.
If your library can work on the whole image - it will be very useful for my navigation program.

Maybe there is a way to know the properties of an image file even before drawing it on the form.

[dzt]

Hi David,

You should load the big image somewhere. An ImageList, a hidden Image control, a hidden form or something. After that you can get it's size using dzImage.ImageSize.

Then you can draw the part of it you want using dzImage.CopyImage

[derez]

Thank for the idea.
I could not resist and went directly to upgrade my navigation program - to enable the user to rotate the map.
Amazing - it was very easy, after you did all the work in the library.
I also managed to correct some aspect ratio problems

I attach pictures of the screen with the 4 rotation states.

I am very excited about it, thank you again

[alfcen]

Hello David,
The aspect is not a 'problem', it's a feature. You can use it for image
processing, in this very case, a blur effect. You set the blur factor
simply by the number of rotations using 90 or 270 degrees