{"record":{"id":"2d9c0d6252a59218","repo":"keras-team/keras","slug":"expected-the-input-image-to-be-rank-3-or-4-receiv-2d9c0d","errorCode":null,"errorMessage":"Expected the input image to be rank 3 or 4. Received: inputs.shape={images_shape}","messagePattern":"Expected the input image to be rank 3 or 4\\. Received: inputs\\.shape=(.+?)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/layers/preprocessing/image_preprocessing/random_posterization.py","lineNumber":80,"sourceCode":"            raise ValueError(\n                self._VALUE_RANGE_VALIDATION_ERROR\n                + f\"Received: value_range={value_range}\"\n            )\n        self.value_range = sorted(value_range)\n\n    def get_random_transformation(self, data, training=True, seed=None):\n        if isinstance(data, dict):\n            images = data[\"images\"]\n        else:\n            images = data\n        images_shape = self.backend.shape(images)\n        rank = len(images_shape)\n        if rank == 3:\n            batch_size = 1\n        elif rank == 4:\n            batch_size = images_shape[0]\n        else:\n            raise ValueError(\n                \"Expected the input image to be rank 3 or 4. Received: \"\n                f\"inputs.shape={images_shape}\"\n            )\n\n        if seed is None:\n            seed = self._get_seed_generator(self.backend._backend)\n\n        if self.factor[0] != self.factor[1]:\n            factor = self.backend.random.randint(\n                (batch_size,),\n                minval=self.factor[0],\n                maxval=self.factor[1],\n                seed=seed,\n                dtype=\"uint8\",\n            )\n        else:\n            factor = (\n                self.backend.numpy.ones((batch_size,), dtype=\"uint8\")","sourceCodeStart":62,"sourceCodeEnd":98,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/layers/preprocessing/image_preprocessing/random_posterization.py#L62-L98","documentation":"Error \"Expected the input image to be rank 3 or 4. Received: inputs.shape={images_shape}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/layers/preprocessing/image_preprocessing/random_posterization.py:80 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":"7a34a03db60bf60042242d6a556fc3be119046a5","analyzedAt":"2026-08-25T21:25:25.994Z","schemaVersion":2},"datasetVersion":"2026-08-26T02:17:13.382Z"}