I Encrypted an image by using AES algorithm. Encryption and Decryption works well. Now the thumbnail of the image is the default image.
But I want something that looks useful for the user. like this image.
I have searched a lot but I can find only the quicklook for the document based applications. How can I add thumbnail for jpeg, png or tiff images ?
I assume you know the path to the file when you create it and you have the icon images in your project, so then just use the NSWorkspace method setIcon:forFile:options:.
Related
When uploading an image in Prestashop, my image is resized accordingly to settings. Can I remove the resize treatment and use native uploaded images in my website?
Images are resized in different size needed for different uses in Prestashop, so disabled fully this feature is not an good idea.
but to get the original image, you need to change path image in your file.tpl
https://example.com/img/p/{$id_product}/{$name_product}.jpg
Which class can be used for loading an image for editing purposes so that i can add a text over it and save it again as PNG/ JPEG to storage
Load the image the file as an Image then call Image.toByteData
Edit the byte array
then reimage it to decodeImageFromPixels issue 11648
For storage, it is kinda in flux since you have a few choices like sqlite or file directory
https://github.com/flutter/flutter/issues/10495
Flutter save a network image to local directory
I just want to say, image resizing is quite slow in flutter.
https://github.com/brendan-duncan/image/issues/55
https://github.com/flutter/flutter/issues/26194
https://github.com/flutter/flutter/issues/21571#issuecomment-452042242
Flutter. High GPU load with list of high resolution images
The image http://www.barre.nom.fr/medical/samples/files/MR-MONO2-16-head.gz on http://www.barre.nom.fr/medical/samples/is not converting to other image formats. I tried following commands (after extracting the dicom file):
dcm2pnm --write-png MR-MONO2-16-head out.png
dcm2pnm +obr MR-MONO2-16-head out.bmp
dcm2pnm MR-MONO2-16-head out.pnm
It also did not work with dcmj2pnm and dcml2pnm. All of them just produce a gray box. The image otherwise is OK and is correctly read by proper dicom viewer softwares. Where is the problem and how can it be solved?
The problem is that no windowing settings are present in the header. You need to instruct dcm2pnm to calculate a window from the histogram (+Wm) or specify windowing values to apply.
dcm2pnm +Wm +obr MR-MONO2-16-head MR-MONO2-16-head.bmp
yields a bitmap image that looks fine to me.
I want to retrieve metadata (width, hight, format ..) from image file (jpeg, png, bmp etc.) in the Html5.
I can use Canvas Api to deal width image.
However, I cannot find Api to retrieve metadata from a file.
Does anyone can know me?
It looks like this little lib might do the trick for you.
I have a need to select a portion of a .png file, with specific cordinators, and delete this area then save the file back with the same name.
I would appreciate if you can help to come up with a VBScript script that can accomplish this task.
It would be great if all proesses happen in the background, but it would be ok too if the image file has to be open and visible. Thanks a bunch!!!
A PNG file, like any other binary file can be edited with CMD or VBS.
A PNG file layout is as follows:
File header
"Chunks" within the file
Pixel format
Transparency of image
Compression
Interlacing
Animation
Read the PNG format in RFC 2083 to know how to edit/create a PNG file at binary/bit level.
To speed up the editing process, libraries are available for application level editing.
Here are some VBA codes for image manipulation.
ImageMagick also provides libraries that can be accessed via VBS for image editing.
Here's a VBScript Image Class for bmp and pcx files (which PNG can be converted to before editing via WIA).
Loadpicture function described here doesn't seem to support PNG, but this discussion might solve it.
The Windows Image Acquisition Library v2.0 supports PNG, BMP, JPG, GIF and TIFF image formats, and comes with Windows Vista and later versions. Sample scripts are available to demonstrate "image manipulation using the ImageFile object". The Vector.ImageFile property also "creates an ImageFile object from raw ARGB data".
More sample codes here & here show how to rotate, flip, scale, crop, etc with WIA Image constants in vbs. To remove unwanted areas of image (with given coordinates), use the crop function.
Here's a discussion of WIA 2.0 image editing on stackoverflow.
VBScript doesn't have any image editing functions, so you need an external tool for that. For example, GIMP can do image processing from the command line (see here). ImageMagick provides a scriptable component in addition to the command-line interface (details here).
To run a command line from a VBScript script, you can use the WShShell.Run method. To create an instance of a COM scriptable component, use the CreateObject function.