diff --git a/src/controller/artifact/const.go b/src/controller/artifact/const.go
deleted file mode 100644
index e5a2a1130..000000000
--- a/src/controller/artifact/const.go
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright Project Harbor Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package artifact
-
-const (
-	// ChartType chart type of artifact
-	ChartType = "CHART"
-
-	// CNABType cnab type of artifact
-	CNABType = "CNAB"
-
-	// ImageType image type of artifact
-	ImageType = "IMAGE"
-
-	// UnknownType unknown type of artifact
-	UnknownType = "UNKNOWN"
-)
diff --git a/src/controller/scan/checker.go b/src/controller/scan/checker.go
index f6755a933..856e77431 100644
--- a/src/controller/scan/checker.go
+++ b/src/controller/scan/checker.go
@@ -18,6 +18,7 @@ import (
 	"context"
 
 	"github.com/goharbor/harbor/src/controller/artifact"
+	"github.com/goharbor/harbor/src/controller/artifact/processor/image"
 	"github.com/goharbor/harbor/src/controller/scanner"
 	models "github.com/goharbor/harbor/src/pkg/scan/dao/scanner"
 )
@@ -88,7 +89,7 @@ func (c *checker) IsScannable(ctx context.Context, art *artifact.Artifact) (bool
 func hasCapability(r *models.Registration, a *artifact.Artifact) bool {
 	// use whitelist here because currently only docker image is supported by the scanner
 	// https://github.com/goharbor/pluggable-scanner-spec/issues/2
-	whitelist := []string{artifact.ImageType}
+	whitelist := []string{image.ArtifactTypeImage}
 	for _, t := range whitelist {
 		if a.Type == t {
 			return r.HasCapability(a.ManifestMediaType)
diff --git a/src/server/middleware/contenttrust/contenttrust_test.go b/src/server/middleware/contenttrust/contenttrust_test.go
index 2cc9ddd07..9b79f84b0 100644
--- a/src/server/middleware/contenttrust/contenttrust_test.go
+++ b/src/server/middleware/contenttrust/contenttrust_test.go
@@ -23,6 +23,7 @@ import (
 	"github.com/goharbor/harbor/src/common/models"
 	"github.com/goharbor/harbor/src/common/security"
 	"github.com/goharbor/harbor/src/controller/artifact"
+	"github.com/goharbor/harbor/src/controller/artifact/processor/image"
 	"github.com/goharbor/harbor/src/controller/project"
 	"github.com/goharbor/harbor/src/lib"
 	securitytesting "github.com/goharbor/harbor/src/testing/common/security"
@@ -59,7 +60,7 @@ func (suite *MiddlewareTestSuite) SetupTest() {
 
 	suite.isArtifactSigned = isArtifactSigned
 	suite.artifact = &artifact.Artifact{}
-	suite.artifact.Type = artifact.ImageType
+	suite.artifact.Type = image.ArtifactTypeImage
 	suite.artifact.ProjectID = 1
 	suite.artifact.RepositoryName = "library/photon"
 	suite.artifact.Digest = "digest"
diff --git a/src/server/middleware/vulnerable/vulnerable.go b/src/server/middleware/vulnerable/vulnerable.go
index 6fe043cfb..5162bddd6 100644
--- a/src/server/middleware/vulnerable/vulnerable.go
+++ b/src/server/middleware/vulnerable/vulnerable.go
@@ -18,7 +18,8 @@ import (
 	"fmt"
 	"net/http"
 
-	"github.com/goharbor/harbor/src/controller/artifact"
+	"github.com/goharbor/harbor/src/controller/artifact/processor/cnab"
+	"github.com/goharbor/harbor/src/controller/artifact/processor/image"
 	"github.com/goharbor/harbor/src/controller/project"
 	"github.com/goharbor/harbor/src/controller/scan"
 	"github.com/goharbor/harbor/src/lib"
@@ -114,7 +115,7 @@ func Middleware() func(http.Handler) http.Handler {
 
 		if art.IsImageIndex() {
 			// artifact is image index, skip the checking when it is in the whitelist
-			skippingWhitelist := []string{artifact.ImageType, artifact.CNABType}
+			skippingWhitelist := []string{image.ArtifactTypeImage, cnab.ArtifactTypeCNAB}
 			for _, t := range skippingWhitelist {
 				if art.Type == t {
 					logger.Debugf("artifact %s@%s is image index and its type is %s in skipping whitelist, "+
diff --git a/src/server/middleware/vulnerable/vulnerable_test.go b/src/server/middleware/vulnerable/vulnerable_test.go
index 221a83ef1..551b84edf 100644
--- a/src/server/middleware/vulnerable/vulnerable_test.go
+++ b/src/server/middleware/vulnerable/vulnerable_test.go
@@ -24,6 +24,7 @@ import (
 	"github.com/goharbor/harbor/src/common/models"
 	"github.com/goharbor/harbor/src/common/security"
 	"github.com/goharbor/harbor/src/controller/artifact"
+	"github.com/goharbor/harbor/src/controller/artifact/processor/image"
 	"github.com/goharbor/harbor/src/controller/project"
 	"github.com/goharbor/harbor/src/controller/scan"
 	"github.com/goharbor/harbor/src/lib"
@@ -79,7 +80,7 @@ func (suite *MiddlewareTestSuite) SetupTest() {
 	}
 
 	suite.artifact = &artifact.Artifact{}
-	suite.artifact.Type = artifact.ImageType
+	suite.artifact.Type = image.ArtifactTypeImage
 	suite.artifact.ProjectID = 1
 	suite.artifact.RepositoryName = "library/photon"
 	suite.artifact.Digest = "digest"