{"record":{"id":"6860950f077b1196","repo":"phalcon/cphalcon","slug":"imagick-getimagealphachannel-failed","errorCode":null,"errorMessage":"Imagick::getImageAlphaChannel failed","messagePattern":"Imagick::getImageAlphaChannel failed","errorType":"exception","errorClass":"Phalcon\\Image\\Exception","httpStatus":null,"severity":"error","filePath":"phalcon/Image/Adapter/Imagick.zep","lineNumber":273,"sourceCode":"        let pixel2       = new ImagickPixel(\"transparent\");\n        let background   = new ImagickNative();\n\n        /** @var ImagickNative $image */\n        let image = this->image;\n\n        image->setIteratorIndex(0);\n\n        while (true) {\n            background->newImage(this->width, this->height, pixel1);\n\n            try {\n                if (true !== background->getImageAlphaChannel()) {\n                    background->setImageAlphaChannel(\n                        constant(\"Imagick::ALPHACHANNEL_SET\")\n                    );\n                }\n            } catch ImagickException {\n                throw new Exception(\"Imagick::getImageAlphaChannel failed\");\n            }\n\n            background->setImageBackgroundColor(pixel2);\n\n            background->evaluateImage(\n                constant(\"Imagick::EVALUATE_MULTIPLY\"),\n                localOpacity,\n                constant(\"Imagick::CHANNEL_ALPHA\")\n            );\n\n            background->setColorspace(\n                image->getColorspace()\n            );\n\n            let result = background->compositeImage(\n                image,\n                constant(\"Imagick::COMPOSITE_DISSOLVE\"),\n                0,","sourceCodeStart":255,"sourceCodeEnd":291,"githubUrl":"https://github.com/phalcon/cphalcon/blob/b7419de9cd0a8a3f48441ead84c9f8415d463e25/phalcon/Image/Adapter/Imagick.zep#L255-L291","documentation":"Error \"Imagick::getImageAlphaChannel failed\" thrown in phalcon/cphalcon.","triggerScenarios":"Thrown at phalcon/Image/Adapter/Imagick.zep:273 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"b7419de9cd0a8a3f48441ead84c9f8415d463e25","analyzedAt":"2026-08-21T06:21:18.811Z","schemaVersion":2},"datasetVersion":"2026-08-21T11:28:35.574Z"}