![]() Please report all bugs to our issue tracker: noasm Disable all assembly optimizations. v Print extra information (decoding time in particular). The value will be calculated preserving the aspect-ratio. If either (but not both) of the width or height parameters is 0, Only a small version is needed (thumbnail, preview, etc.). Mostly intended to reducing the memory needed to decode large images, when resize width height Rescale the decoded picture to dimension width x height. flip Flip decoded image vertically (can be useful for OpenGL textures for Note: theĬropping is applied before any scaling. Is meant to reduce the memory needed for cropping large images. Top-left corner will be snapped to even coordinates if needed. ![]() ThisĬropping area must be fully contained within the source rectangle. crop x_position y_position width height Crop the decoded picture to a rectangle with top-left corner atĬoordinates ( x_position, y_position) and size width x height. mt Use multi-threading for decoding, if possible. ![]() nodither Disable all dithering (default). It helps by smoothing gradients and avoiding banding artifacts. Post-processing effect applied to chroma components in lossy compression. dither strength Specify a dithering strength between 0 and 100. This may produce visible blocks on the non-compliant output,īut it will make the decoding faster. nofilter Don't use the in-loop filtering process even if it is required by theīitstream. (especially the red ones), but should be faster. nofancy Don't use the fancy upscaler for YUV420. This option is mainly for verification and debugging Luma/chroma-U/chroma-V samples instead of RGB, saved sequentially as yuv Change the output format to raw YUV. Samples instead of RGB, using the IMC4 layout. ppm Change the output format to PPM (discards alpha). pam Change the output format to PAM (retains alpha). tiff Change the output format to uncompressed TIFF. bmp Change the output format to uncompressed BMP. The data will be read from stdin instead of a file. This option must appear last.Īny other options afterward will be ignored. This option is useful if the inputįile starts with an '-' for instance. string Explicitly specify the input file. Using "-"Īs output name will direct output to 'stdout'. o string Specify the name of the output file (as PNG format by default). version Print the version number (as ) and exit. The basic options are: -h Print usage summary. Note: Animated WebP files are not supported. Dwebp - Decompress a WebP file to an image file Synopsisĭwebp input_file.webp Descriptionĭwebp decompresses WebP files into PNG, PAM, PPM or PGM images.
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