alpha-transparency

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Convert images to alpha transparency with PHP

$im = imagecreatefrompng(\'./test.png\'); $white = imagecolorallocate($im, 255, 255, 255); imagecolortransparent($im, $white);[详细]

2023-03-21 05:46 分类：问答
PNG with transparency from Photoshop to Flash: how to make .swf display exactly what .psd does?

I have two layers in Photoshop: 1 -- a texture, 2 -- a semi-transparent image that overl开发者_如何学Goaps texture. The combination of the two looks nice in Photoshop. I export them separately from Ph[详细]

2023-03-17 16:29 分类：问答
Changing alpha value on top and bottom parts of UIImageView

I\'m picking up a photo from the photo albums, however I would like to be able to do the following with it:[详细]

2023-03-16 16:55 分类：问答
Draw opaque lines onto translucent TBitmap

I’ve got an empty bitmap, and I’ve got a drawing routine that receives a TCanvas.The drawing routine is part of a larger library, and so effectively out of my control.[详细]

2023-03-01 13:30 分类：问答
Delphi 2006: Run-time assignment of PNG to TImage loses alpha transparency

Delphi 2006\'s TImage doesn\'t quit开发者_如何学运维e support PNGs.In order to have images with alpha transparency on my forms I have to load them at run-time.I can load them at design time but they d[详细]

2023-02-17 20:46 分类：问答
Printing images with partial transparency without introducing distortions

I\'m having some troubles printing images and texts that have a 8 bit alpha channel. It looks like most printer drivers will incorrectly render the alpha channel, adding some dithering patterns instea[详细]

2023-02-16 01:41 分类：问答
Access to raw data in ARGB_8888 Android Bitmap

I am trying to access the raw data of a Bitmap in ARGB_8888 format on Android, using the copyPixelsToBuffer and copyPixelsFromBuffer methods. However, invocation of those calls seems to always apply t[详细]

2023-02-10 13:02 分类：问答
Need help understanding Alpha Channels

I have the RGB tuple of a pixel we\'ll call P. (255, 0, 0) is the color of P with the alpha channel at 1.0.开发者_如何转开发[详细]

2023-02-07 06:00 分类：问答
PHP GD inappropriate transparancy [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-02-05 06:27 分类：问答
Visual studio and alpha backgrounds

Seen this question asked a lot but can\'t seem to find an answer. So here it is. Can you use a PNG with an alpha channel as the background image for a VB app? I don\'t care about changing the shape of[详细]

2023-02-04 14:49 分类：问答