png8 | wrapper around pngquant , pngnq and pngout for Mac OS X | Image Editing library

 by   perifer Python Version: Current License: No License

kandi X-RAY | png8 Summary

kandi X-RAY | png8 Summary

png8 is a Python library typically used in Media, Image Editing, Nodejs applications. png8 has no bugs, it has no vulnerabilities and it has low support. However png8 build file is not available. You can download it from GitHub.

png8 is a commandline tool for OS X that converts 24-bit PNG images to 8-bit PNG. Most common graphic programs can't export to 8-bit PNG with alpha transparency even though it's by far the most useful file format for the web.
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              png8 has a low active ecosystem.
              It has 15 star(s) with 3 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              png8 has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of png8 is current.

            kandi-Quality Quality

              png8 has 0 bugs and 0 code smells.

            kandi-Security Security

              png8 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              png8 code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              png8 does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              png8 releases are not available. You will need to build from source code and install.
              png8 has no build file. You will be need to create the build yourself to build the component from source.
              Installation instructions, examples and code snippets are available.

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            png8 Key Features

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            png8 Examples and Code Snippets

            No Code Snippets are available at this moment for png8.

            Community Discussions

            QUESTION

            JPEG-XL: Handling of palette in libjxl command line tools
            Asked 2022-Apr-01 at 15:42

            I am trying to make sense of the following presentation, see page 27:

            Could someone please describe the command line tools available in libjxl that can help me work with existing palettes ?

            I tried a naive:

            ...

            ANSWER

            Answered 2022-Mar-29 at 15:39

            The libjxl encoder either takes a JPEG bitstream as input (for the special case of lossless JPEG recompression), or pixels. It does not make any difference if those pixels are given via a PPM file, a PNG8 file, a PNG24 file, an RGB memory buffer, or any other way, if the pixels are the same, the result will be the same.

            In your example, you have an image that is just solid white, so it will be encoded the same way regardless of how you pass it to cjxl.

            Now if those pixels happen to use only few colors, as will be the case for PNG8 since there can be at most 256 colors in that case, the encoder (at a default effort setting) will detect this and use the jxl Palette transform to represent the image more compactly. In jxl, palettes can have arbitrary sizes, there is no limit to 256 colors. The --palette option in cjxl can be used to set the maximum number of colors for which it will still use the Palette transform — if the input image has more colors than that, it will not use Palette.

            The use of Palette is considered an internal encoding tool in jxl, not part of the externally exposed image metadata. It can be used by the encoder to effectively recompress PNG8 files, but by no means will it necessarily always use that encoding tool when the input is PNG8, and it might also use Palette when the input has more than 256 colors. The Palette transform of jxl is quite versatile, it can also be applied to individual channels, to more or less than 3 channels, and palette entries can be not only specific colors but also so-called "delta palette entries" which are not a color but signed pixel values that get added to the predicted pixel value.

            Source https://stackoverflow.com/questions/71648073

            QUESTION

            Angular/TypeScript treats array as object and throws an Error: Cannot find a differ supporting object
            Asked 2022-Feb-10 at 18:35

            My code is the following in my component, I defined this:

            ...

            ANSWER

            Answered 2022-Feb-10 at 02:04

            I've got modified a version of the documentation example to use what you've shared and it's working at https://stackblitz.com/edit/angular-3pnr1l with the TS/Angular versions you specified. It's ng-bootstrap 11.0 for what it's worth, but you hadn't specified that.

            One difference in the implementation is the use of .

            Source https://stackoverflow.com/questions/71058605

            QUESTION

            Adding env to options when doing L.tileLayer.wms for leaflet
            Asked 2021-Oct-11 at 22:59

            I have an application using ngx-leaflet, Leaflet for Angular, and I'm trying to do a L.titleLayer.wms but adding an extra option to tileLayer.wms. It looks likes this:

            ...

            ANSWER

            Answered 2021-Oct-11 at 22:59

            All I needed to do to get it to work is:

            Source https://stackoverflow.com/questions/69501414

            QUESTION

            Javascript Auto Increment Code not working
            Asked 2021-Sep-24 at 11:28

            I need to generate 1000 images each with different numbers. Doing this is found a script online which works fine, but it doesn't work with 00 in front of the increments.

            I can't just add 00 in front of every number because when it hits 10 it's doing 0010 instead of 010 like I want it to.

            That means I need to change the code a bit. And it's probably REALLY basic, but I just can't figure it out. There is no log sadly, because I am running the script in Photoshop.

            Here is the code I have trouble with. And underneath is the result:

            ...

            ANSWER

            Answered 2021-Sep-24 at 09:18

            You can add the number to a string of zeroes, and then slice the resulting string based on desired length:

            Source https://stackoverflow.com/questions/69312367

            QUESTION

            How to fix unidentified character problem while passing data from TKinter to Photoshop via Python script?
            Asked 2021-May-21 at 21:25

            I made a GUI Application which looks like this:

            The ones marked red are Tkinter Text widgets and the ones marked yellow are Tkinter Entry widgets

            After taking user input, the data is to be added to a PSD file and then rendered as an image. But Lets say, after taking the following data as input:

            It renders the following Photoshop file:

            How do I fix this issue that it does not recognize "\n" properly and hence the rendered document is rendered useless.

            Here is the code which deals with converting of the accepted user data into strings and then adding it to Photoshop template and then rendering it:

            ...

            ANSWER

            Answered 2021-May-19 at 18:10

            There are 3 ways of expressing new line characters:

            • MacOS uses \r
            • Linux uses \n
            • Windows uses \r\n

            Python and tkinter use \n but it looks like psApp.Application uses \r instead. That is why the document isn't rendered properly. For more info read the answers to this question.

            Source https://stackoverflow.com/questions/67607868

            QUESTION

            can i send request as post request for imageArcgisRest | OPENLAYERS 6.5
            Asked 2021-Apr-21 at 18:53

            I am using imageArcgisRest source and I need to filter data by ids in export layer API, ids can be in thousands. so get a request is not possible to do that. is there any way to request data as a post method with OpenLayers imageArcGisRest source?

            here is my code of creating source:

            ...

            ANSWER

            Answered 2021-Apr-21 at 18:53

            This setup works in a simple test (using a test browser because the sample server does not support CORS) to filter highways in the OpenLayers example https://openlayers.org/en/latest/examples/arcgis-image.html

            Source https://stackoverflow.com/questions/67195154

            QUESTION

            Sed Match & Replace already escaped URLs (https:/\/\eample.com\/wp-content\/themes/image/picture.png)
            Asked 2021-Feb-10 at 08:00

            I've been trying to parse through a large number of json files within subdirectories and search-replace the URLs/strings. No matter what I try I can't seem to get sed to actually make any changes within the files.

            The strings must be in this format as it's what's required in the json files. My reasoning for this is there could be other image urls within other files with different tags I hadn't accounted for and therefore this would catch all basically.

            In my current environment, I don't have jq and can't install it, but I could move these files somewhere else and use jq or python or whatever...

            Here's the general structure of the files, I believe I am piping the correct files, just sed not playing nice.

            ...

            ANSWER

            Answered 2021-Feb-10 at 08:00

            You may be overthinking. Please try instead something like:

            Source https://stackoverflow.com/questions/66130371

            QUESTION

            HERE javascript API: Set center & zoom with animation
            Asked 2020-May-13 at 08:22

            I am rendering a few markers on my React JS application using HERE maps. On clicking a marker the map center changes to the clicked hub and map zoom increases. On clicking another marker the map location changes to the other marker. This change of map center should take place with a nice animation/transition but instead, the map center changes instantaneously without animation. I could not find any other way to do this. Here's what my map instantiation looks like:

            Imported the below in index.js:

            ...

            ANSWER

            Answered 2020-Feb-03 at 13:31

            I think the problem is not React itself, but the fact that you try to set the center and immediately the zoom. This way the second animation cancels the first one.

            For the correct way of animating multiple properties you should use H.map.ViewModel#setLookAtData method:

            Source https://stackoverflow.com/questions/60008457

            QUESTION

            PHP Imagick, HEIC format on Windows
            Asked 2020-Jan-09 at 21:22

            I have XAMMP x86, on Windows 7, PHP 7.3.2.

            Installed Imagick following instructions: https://github.com/Imagick/imagick

            Everything works fine, except HEIC format reading.

            I get an error:

            ImagickException: NoDecodeDelegateForThisImageFormat HEIC' @ error/constitute.c/ReadImage/509

            PHPINFO:

            ...

            ANSWER

            Answered 2020-Jan-09 at 21:22

            The version of ImageMagick that you are using is too old. You will need to upgrade to at least the version below but I would advise you to upgrade to the latest version.

            Source https://stackoverflow.com/questions/59662138

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