keras-team/keras · error · ValueError

Expected the input image to be rank 3 or 4. Received inputs.

Error message

Expected the input image to be rank 3 or 4. Received inputs.shape={images_shape}

What it means

Error "Expected the input image to be rank 3 or 4. Received inputs.shape={images_shape}" thrown in keras-team/keras.

Source

Thrown at keras/src/layers/preprocessing/image_preprocessing/random_gaussian_blur.py:135

        return lower, upper

    def get_random_transformation(self, data, training=True, seed=None):
        if not training:
            return None

        if isinstance(data, dict):
            images = data["images"]
        else:
            images = data

        images_shape = self.backend.shape(images)
        rank = len(images_shape)
        if rank == 3:
            batch_size = 1
        elif rank == 4:
            batch_size = images_shape[0]
        else:
            raise ValueError(
                "Expected the input image to be rank 3 or 4. Received "
                f"inputs.shape={images_shape}"
            )

        seed = seed or self._get_seed_generator(self.backend._backend)

        blur_probability = self.backend.random.uniform(
            shape=(batch_size,),
            minval=self.factor[0],
            maxval=self.factor[1],
            seed=seed,
        )

        random_threshold = self.backend.random.uniform(
            shape=(batch_size,),
            minval=0.0,
            maxval=1.0,
            seed=seed,

View on GitHub (pinned to 7a34a03db6)

When it happens

Trigger: Thrown at keras/src/layers/preprocessing/image_preprocessing/random_gaussian_blur.py:135 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of keras-team/keras@7a34a03db6 (2026-08-25). Data as JSON: /api/errors/941f236a3d226926. Report an issue: GitHub.